Answer:
x=6, y=-6. (6, -6). I used elimination method.
Step-by-step explanation:
-4x-2y=-12
4x+8y=-24
-------------------
6y=-36
y=-36/6
y=-6
-4x-2(-6)=-12
-4x+12=-12
-4x=-12-12
-4x=-24
4x=24
x=24/4
x=6
Out of the 400 students surveyed,
-how many more students chose Mr.
Crosby than Ms. Smokey?
Favorite Teacher
Answer:
60 more students
Step-by-step explanation:
400 × 0.3 (30%) = 120
400 × 0.15 (15%) = 60 = 120÷2
120 -- 60 = 60
60 more students
brainliest plz if someone else answers
help plz solve for sides on 30-60-90 triangles 50 POINTS
Answer:
liiiaaaarrrrrr
Step-by-step explanation:
let me know i need asap thank you
Answer:
Step-by-step explanation:
It might be A or D I’m not for sure which one it is.
A music store marks up the instruments it sells by 30%.
1. If the store brought a guitar for $45, what will be the amount of the mark up?
Answer: They will mark it up 13.5$ to 58.5$
Step-by-step explanation:
45 x .3 = 13.5
45 + 13.5 = 58.5
Answer:
The mark up will be 13.5
Step-by-step explanation:
Please help me please
Answer:
SA=390
Step-by-step explanation:
9*14=126
126+126=252
14*3=42
42+42=84
9*3=27
27+27=54
252+84+54=390
Ten times the number of balloons is 120
Answer:
12 balloons
Step-by-step explanation:
120 divided by 10 = 12
:)
-x+ x² - 6 what is the answer
Answer:
x2−x−6
Step-by-step explanation:
Answer:
(x-3)(x+2)
Step-by-step explanation:
7 th grade ixl helppppppppppp
Answer:
Question 1= EFC and GFH
Question 2=60
I'm not sure but I think its right!
Pls let me know
Also pls mark me brailiest
hii please help smart people
Answer:
x = 73 °
Step-by-step explanation:
A pentagon has a collective degree of 540
So to find x, you have to set up an equation:
x + 127 + 112 + 108 + 120 = 540
To solve:
Combine like terms
x + 467 = 540
Subtract 467 on both sides:
x = 540 - 467
x = 73
Which career would be a good fit for Navin?
Answers
histotechnologist career would be a good fit for navin
Answer:
C. Histotechnologist.
Definitely correct. Just took the Edge Unit Test
Step-by-step explanation:
When three squares are joined at their vertices to form a right angle the combined area of the two smaller squares is the same as the area of the largest square
Answer:
a
Step-by-step explanation:
BICYCLES A bicycle has tires that are 24 inches in
diameter.
How many inches does the tire travel after 350 rotations?
Answer:
75.4 in. b. 7540 in. Find the diameter and radius of a circle with the.
Step-by-step explanation:
hope this helped !!!!!!
AB is parallel to CD. Find the measure of each numbered angle.
Answer:
#4 angle 1 = 154 degrees
#4 angle 2 = 26 degrees
#5 angle 1 = 97 degrees
#5 angle 2 = 82 degrees
#5 angle 3 = 83 degrees
Step-by-step explanation:
The image displays which angles are the same on line equations like these using color coding.
In order to translate between the green angle and the pink angle you subtract it from 180.
Equation: 180 - angle type 1 = angle type 2
Ex: 180 - 154 = 26
4x + 5y = -2 . what is the slope show ur work
4x + 5y = -2
-5 -5
4x = -5y - 2
4x/4 = -5y -2/ 4
x = -5/4 y + -1/2
a file cabinet is 48in. tall, 15 in. wide and 24in. deep. find the volume of the file cabinet
Answer:
17,280
formula is length times width times hight then you get the volume
Can someone please help me understand how to do this???
Answer:
is it 83.3
Step-by-step explanation:
Anna said that the product of 78⋅112=7278·112=72.
How can you tell that her answer is wrong?
Answer:
The easiest way I can think of to show someone who is not very mathematically inclined that the calculation is wrong (other than using a scientific calculator) is this:
Explain that one half contains four eighths - you can visualize this very simply with a pie chart.
Then tell Anna that mathematically speaking this translates to the equation:
1/2 = 4 * 1/8
Now, if ONE half is equal to four times ONE eighths, then SEVEN halves is equal to four times SEVEN eighths - basically, you just multiply both sides by 7:
7/2 = 4 * 7/8
Now, compare this to the equation proposed by Anna:
7/2 = 1½ * 7/8
I guess, at this point it will be easy to convince Anna that 1½ is not 4, and therefore her equation is faulty.
-----
Alternatively, if she's sound with fractions you could also tell her that to get from 7/8 to 7/2 you will need a factor which only affects the denominator as the numerator stay the same. The factor that turns 8 into 2 is 1/4 but since this takes place in the denominator we need the reciprocal to turn 1/8 into 1/2 - and the reciprocal of 1/4 is of course 4. At which point we've arrived at the same place of argumentation as before (which is that 4 ≠ 1½).
Step-by-step explanation:
hope this helps :)
Round to the nearest ten to estimate the difference of 789 – 371. Enter your answer in the box.
Answer:
420
Step-by-step explanation:
789 would round to 790 and 371 would round to 370 so 790 - 370 is 420
?????????????????????
Answer:
Y= 10
angle D= 76
angle C=40
angle E=64
Step-by-step explanation:
Find f(x)=(x^2)+x+39, when x=50. (don't write a comma in answer.)
f(x) = x² + x + 39
f(50) = 50² + 50 + 39
f(50) = 2500 + 89
f(50) = 2589
9. If ground beef costs $4.98 for 3 pounds, then what is the unit rate (cost per
pound)?
(a) What is the unit rate (cost per pound)? Don't forget units!
(b) Explain how you found the unit rate.
Explanation:
Answer:
1.66 pounds
Step-by-step explanation:
4.98 dollars divided by 3 pounds
a recipe calls for 5/8 cup of sugar for every 5 teaspoons of vanilla. what is the unit rate in cups per teaspoon?
a) 3 1/8
b) 1/8
c) 8
d) 8/25
Answer:
b) 1/8
Step-by-step explanation:
5/8 ÷ 5 = 1/8
The unit rate in cups per teaspoon is 1/8 cup of sugar.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
5/8 cup of sugar=5 teaspoons of vanilla.
or, 5 teaspoons of vanilla = 5/8 cup of sugar
So, 1 teaspoon of vanilla = (5/8)/5 cup of sugar
(5/8)/5 = (5/8)*(1/5)
(5/8)/5 =1/8
So, 1 teaspoon of vanilla = 1/8 cup of sugar
Hence, the unit rate in cups per teaspoon is 1/8 cup of sugar.
To get more about unitary methods visit:
https://brainly.com/question/24587372
A jar contains 3 blue marbles and 6 red marbles. Suppose you choose a marble at
random and do not replace it. Then you choose a second marble. Find the probability of
both of the marbles you select are red.
Select the correct answer
A: 1/18
B: 5/12
C: 1/3
can you guys help please?
Answer:
25%
Step-by-step explanation:
There are 3 shaded and there are 12 in all, 3 is 25% of 12
Simplify Expression.
-4 + 8p - 6p - 5 + 20p
please step by step.
Answer:
p= 9/22
Step-by-step explanation:
grouping of like terms
= -4-5 +8p-6p+20p
= -9 +22p
p =9/22
Find the value of x in each triangle with the given angle measures.
Answer:
15°
Step-by-step explanation:
Total degrees of a triangle is 180°
Angle 1: ?
Angle 2: 81°
Angle 3: 84°
180°- 81°- 84° = 15°
what is this pls helpppppppppp
Hope this can help you <33
GL!
PLEASE HELP!!
asap, thank you if you do.
you do not have to do all of them, please show work btw.
Answer:
5. 36 square inches
2. Answer is B.
3. 189 cm^2
Step-by-step explanation:
5. 6 + 6 + 6 + 8 + 10 = 36
3. 51 + 102 + 36 = 189
See image for question.
Please show workings and diagrams.
Answer:
a) 16.4 kmb) 79°c) 10 kmStep-by-step explanation:
Find the m∠B:
m∠B = (360° - 310°) + 50° = 100°a)
Find AC using law of cosines:
AC = √(8² + 13² - 28*13*cos 100°) = 16.4 km (rounded)b)
Find m∠A using law of sines:
16.4/ sin 100 = 13 / sin Am∠A = arcsin (13 sin 100 deg / 16.4) = 51° (rounded)The bearing of C from A:
180° - (50° + 51°) = 79°c)
Let the required distance is x:
x/ BC = sin 50°x = BC sin 50°x = 13 sin 50°x ≈ 10 km (rounded)Answer:
a) 16.4 km
b) 79 deegres.
c.10 km
Step-by-step explanation:
Find the m<B:
-m<B= 360 deegres -310 deegres) +50 deegres=100 deegres.
a)
Find AC using law of counsines:
-AC=( 8 to the second power + 13 to the second power - 28×13× cos 100 deegres.
16.4 km
Two angles are vertical angles. One measures 39 degrees. What is the measure of the other angle? *