Mathematics Middle School

7a = 49 plzzzzzzzzzzzzzzz help me

Answers

Answer 1

Answer:

a=7

Step-by-step explanation:

Related Questions

what is -87 + (-971)=

Answers

Answer:

-1058

Step-by-step explanation:

There are 300 dogs spread around 12 kennels across Texas. If x represents kennels and y represents the number of dogs, what is k, the constant of proportionality?

Answers

I am pretty sure the constant is 25

In a survey of 420 people, 85% said they drink coffee. 1/3 of the people said they drink their coffee black. How many of the surveyed people drink their coffee black?

Answers

Answer: A:119

Step-by-step explanation:

420 * 0.85 is 357 and 357 * 1/3 is 119

119 is your answer hope it helps

Find the equation of the line that passes through (-12, 3) and (6, -9). Write your answer in simplified slope-intercept form.

Answers

Answer:

y=-2/3x-5

Step-by-step explanation:

Wendy mixed 5 parts of orange juice and 2 parts of water to make a drink. How many parts of orange juice did Wendy mix with each part of water?

two over five
five over seven
seven over five
five over two

Answers

Answer:

5:2

Step-by-step explanation:

What is the input when the output is five?

A) 5
B) 4
C) 7
D) 13

Answers

Answer:

C. 7

Step-by-step explanation:

What is the x-intercept of the graph that is shown below? On a coordinate plane, a line goes through points (0, 2) and (3, 0). (–3, 4) (0, 2) (2, 0) (3, 0)

Answers

Answer:

(3,0) or 3

Step-by-step explanation:

If you know what the y-intercept is, (when x = 0 on a graph) the x-intercept is just the opposite.

Hope this helps!

Answer:

d

Step-by-step explanation:

The area of a parallelogram is given by the formula A = bh where is the base and h is the height. A parallelogram has an area of 312 square centimeters and a base of 26 centimeters. Find the height of the parallelogram in centimeters.

Answers

12 because 312 divided by 26 12
The answer is 12
Hope this helps

PLS HELP

Identify the parts in the expression below:

2x² + x +4

Number of Terms:

Answers

Answer:

I think the number of terms are 3

Answer:

There are 5 terms: 2 is a coefficient, the x are variables, the 2 above the x is an exponent, and 4 is a constant.

Half a bag of flower seeds can be used to cover an area of 150 square meters. How many square meters can be covered with 14 bags of flower​ seeds?
________square meters can be covered with 14 bags of flower seeds.
​

Answers

Answer:

2100

Step-by-step explanation:

Which function has a greater rate of change?

Function A:
x 1.5 2.5 3.5 4.5 5.5
y –5 0 5 10 15

Function B:
y = –4.5x + 15

Function A has a rate of change of
and Function B has a rate of change of
, so Function
has a greater rate of change.
HHHHHHHHHHHHHHHHHHHHHEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

Function A

Step-by-step explanation:

Hope this helps!

(correct me if I'm wrong, but please polity)

Please Help, this is times, i will make BRAINLIEST if correct.

The value of a car decreases by 20 percent per year. Mr. Sing purchases a $22,000 automobile. What is the value of the car at the end of the second year?
A- $14,080
B- $17,600
C- $19,800
D- $26,400

Answers

Answer:A

Step-by-step explanation:cause if you know a lot about cars you would know

Answer:

A- $14,080

Step-by-step explanation:

At end of first year:

$22,000 will decrease by 20%. It means to subtract 20% of 22,000 from 22,000.

20% of 22,000 is  

0.2 x 22,000 = 4,400

Now,  

22,000 - 4,400 = 17,600

At end of second year:

$17,600 will decrease by 20%. It means to subtract 20% of 17,600 from 17,600.

20% of 17,600 is  

0.2 x 17,600 = 3520

Now,  

17,600 - 3,520 = 14,080

Hence, $14,080 is the value of the car at the end of 2 years.

Edit: Can you pls make me brainliest? TYSMMMMMMMMMMMMMM

-6 = 2x i need helppppp plzzzzz

Answers

Answer:

x= negative 3

Step-by-step explanation:

-6 divided by 2 is -3

Isolate the variable by dividing each side by factors that don't contain the variable.

x = −3

PLEASE HELP! CAN'T FIGURE OUT :((

Lauren sold 140 boxes of cookies. 60% of the boxes of cookies were sold to people her dad works with. Of these boxes, 1/4 of the boxes of cookies contained mint. How many boxes of mint cookies did Lauren sell to people her dad worked with?


A. 84

B. 56

C. 21

D. 14

Answers

Answer:

0.25×84=21

Step-by-step explanation:

Answer:

C: 21

Step-by-step explanation:

Which unit rate is equivalent to 12 miles per gallon? twenty four miles over two gallons two gallons over twenty four miles thirty six miles over four gallons four gallons over thirty six miles. answer asap

Answers

Answer: 24 miles over two gallons

Step-by-step explanation: You would divide 24 miles by two gallons which would get 12 miles per gallon

Answer: A

Step-by-step explanation:

24 miles divided by 2 gallons | 24 miles ÷ 2 gallons

When you divide 24 by 2, you'll get 12. Which makes that the answer. And this option is the only one that would give you the answer 12.

hope it helped xx

-Alyssa ♡

A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation? 2y = 16x +14 y = 8x – 7 y = –8x + 7 2y = −16x − 14

Answers

Answer:

I think its y=8x-7

Step-by-step explanation:

Pls tell me if i'm wrong.

Answer:

B

Step-by-step explanation:

I got 100% on edge 2020 quiz

What is the value of Katie's hand?

Options:
A) -16
B) 16
C) -2
D) 2

Answers

the answer is 16❤️❤️❤️❤️❤️

Answer:

c

Step-by-step explanation:

-9+7=-2

LET ME KNOW IF THIS HELPS

Solve 4x + 5 > 5x − 2 for x.

Answers

Answer:

20x

Step-by-step explanation:

Answer:

x<7

Step-by-step explanation:

4x-5x>-2-5

collect like terms

calculate

-x>-7

x<7

Write the ratio 2 : 12 in the two other forms. (the word “to” and fraction form)



Read the choices carefully. The “to” and the fraction form should be the same

Answers

Answer:

2 to 12 as a phrase, and 2/12 or 1/6 as a fraction

Step-by-step explanation:

The ratio 2 : 12 in the other two forms can be written as 2 to 12 and 2/12 in fractional form.

What is Ratio?

Ratio is defined as the relationship between two quantities where it tells how much one quantity is contained in the other.

The ratio of a and b is denoted as a : b.

The given ratio is defined as 2 : 12

Now we have to write this in two forms. Fractional form and in another form.

2 : 12 can be written as 2 to 12 in words.

In fractional form, we can write this as,

2 : 12 = 2/12 = 1/2

So 1/6 is also a way of writing 2 /12

Hence the two forms are 2 to 12 and 2/12 in fractional form.

Learn more about Ratio here :

https://brainly.com/question/30332645

#SPJ3

James estimated the total cost of groceries to be $50. The actual cost of the groceries is $65. What is the percent error? Round your answer to the nearest whole percent. Enter your answer in the box. ____

Answers

Answer:

well the answer is right there

you have to do the work to view it though

Step-by-step explanation:

Answer:

23 %

Step-by-step explanation:

Given : James estimated the total cost of groceries to be $50.

The actual cost of groceries = $65

The error value in the total cost= actual cost - estimated value

=$65-$50

Therefore, Error value=$15

Therefore, the percent error =23%

Which equation has every number as a solution? *

4x = 4x + 1
4x + 1 = 4x - 1
4(x + 1) = 4x + 1
4(x + 1) = 4x + 4


PLEASE HELPPPP 10 pointsss

Answers

Answer:

the last equation has a solution

Step-by-step explanation:

4(x+1)=4x+4 which gives

(4*x)+(4*1)=4x+4

4x + 4 = 4x + 4

Therefore both the left-hand side and the right-hand side are equal

The answer is the last equation I think im not sure

Kala will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $47.98 and costs an additional $0.14 per mile driven. The second plan has an initial fee of $51.98 and costs an additional $0.12 per mile driven. How many miles would Kala need to drive for the two plans to cost the same?

Answers

Answer:

200 Miles

Step-by-step explanation:

Solving:

47.98+.14x=51.98+.12x

.14x=4+.12x

.02x=4

x=200

Checking:

47.98+.14(200)

75.98

51.98+.12(200)

75.98

200 miles she needs to drive

Of 48 members of a gymnastics team, 20 entered the parallel
bars competition, 7 entered both parallel bars and tumbling competition, and 18
entered only other events. How many members entered only tumbling competition?

Answers

only seven people entered the tumbling part
only seven members entered

2,000 water bottles are being labeled and boxed. Each box holds 6 water bottles. How many bottles will be left over?

Answers

Answer:

2 left out, with 333 boxes

Step-by-step explanation:

2000/6=333.333333 ([tex]\frac{1}{3}[/tex])

[tex]\frac{1}{3}[/tex] of 6 is 2. Therefore, there would be 333 boxes, with two left unboxed.

Nose nose nose nose nose nose

HELP ASAP! im really stuck and if anyone can help that would be appreciated!
please only answer if you know the correct answer, dont steal my points putting "ouswidubfyivwfebw" like everyone always does to me

Answers

Answer:

D

Step-by-step explanation:

solve so y is by its self

Look at the attached image!

Answers

x+5x=180
6x=180
x=30
m <3= 30 m<8=150

Two data sets are summarized in the box plots shown

Answers

A and D

let me know if you want an explanation its a lot to type

ok so i need you to tell me how many solutions does this problem have but if none then say no solution but 3(x + 4) = 3x + 4

Answers

The answer is.... No Solution

Answer:

-8

Step-by-step explanation:

3( x + 4 ) = 3 x + 4 = 3 x + 4

3 x + 12 = 3 x + 4

3x + 12=3x + 4

3x + 12-12 = 3x + 4-12

3x= 3x-8

I WILL GIVE BRAINIEST

Go to your math tools and open the Graph tool to graph Gwen’s and Keith’s equations. Be sure to remove Tristan’s equation before adding Keith’s equation.


Do the two lines intersect? Why or why not? What does this mean in terms of the situation? If they intersect, at what point do they intersect and what does this point mean in terms of the situation?

gwen’s: y = 100 + 10x

keith's: y = 10x

Answers

The lines will never intersecting as they are parallel lines because the slope of the lines is equal.

Given that,
y = 100 + 10x and  y = 10x
To justify whether the two lines intersect each other or not,

What is a line?

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
y = 10 + 10x,
The slope of the equation is m1 = 10
y = 10
The slope of the above equation is m2 = 10
Since the slope of both lines is an equation, it implies that the lines are parallel to each other it will not intersect at any point.

Thus, the lines will never intersect as they are parallel lines because the slope of the lines is equal.

learn more about lines here:

brainly.com/question/2696693

#SPJ5


Perform the indicated operation. 22 6/11 ∙ 1 1/2
1. 33 11/12
2. 22 11/12
3. 33 9/11
4. 22 9/11

Answers

Answer:

3. 33 9/11

Step-by-step explanation:

EZ

Answer:

33/11/12

Step-by-step explanation:

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