Solve in picture. Mathematics problem.

Answers

Answer 1

Answer: Cross Multiplication!
$(4)/(7)$ = $(x-3)/(21)$
4 × 21 = 7 × (x-3)
Distribute 7 into the parenthesis:
84 = 7x - 21
Take 21 to the other side:
84 + 21 = 7x
105 = 7x
Divide by 7 on both sides:
$(105)/(7)$ = $(7x)/(7)$
( 7 and 7 cancels out )
15 = x
x = 15

Related Questions

A spinner has the numbers 1 to 4 on it.Probability of spinning 4 is 0.1 Probability of spinning 1 is 0.6 Probability of spinning 2 is the same as 3. What is the probability of spinning a number 3?
The total surface area of a cube is 726 in^2 what is the length of each side of the cube? it is. in
What is 5.2E11 in scientific notation
Meredith practices the piano for 3 hours each week. How many hours will she practice in 8 weeks?
What is the half of 15

Christiana works at Texas Road House and makes $50 each night in tips plus $7.50 per hour. Write a function rule in function notation where M is the total money she makes and h is the number of hours she works in one night.

Answers

Answer: $M = 50 + 7.50 h$

Step-by-step explanation:

As per the given scenario,

Total money Christina made = (Money she made in tips) + (Per hour wage ) x (Number of hours she work in one night) (i)

Let M is the total money she makes and h is the number of hours she works in one night.

Here, Money she made in tips = $ 50

Per hour wage = $7.50

So substitute all the values in (i), we get

$M = 50 + 7.50 h$

Hence, the required function is $M = 50 + 7.50 h$ .

Fifty people own 4,000 books. What's the ratio of people to books? A. 80 : 1 B. 1 : 80 C. 1 : 40 D. 40 : 1

Answers

We have 50:4000, then divide by 50 on both sides to get 1:80, which is B

easy to work out [B] 1: 80
hope my answer helped!!

There were 6954 cases filed with the Supreme Court. Of these only 82 were decided by the Supreme Court. What percentage was decided by the Supreme Court

Answers

Answer:

Total no. of cases = 6954

No. of cases decided = 82

Percentage decided = (82/6954)x100 = 1.17%

Answer:

1.18%

Step-by-step explanation:

A percentage can be found by dividing the part by the whole. then multiplying by 100.

(part/whole) * 100

In this problem, the part is the cases decided by the Supreme Court. The whole is the total number of cases filed.

(cases decided / cases filed) *100

There were 82 cases decided by the Supreme Court, out of a total of 6,954 cases filed.

(82/6954) *100

First, solve the parentheses and divide.

0.0117917745* 100

Multiply

1.17917745 %

Round to the nearest hundredth. The 9 in the thousandth place tells us to round the 7 up to an 8 in the hundredth place.

1.18 %

About 1.18% of the cases filed were decided by the Supreme Court.

Name line n in three other ways

Answers

<----->
n

sorry thats all i got

If angle A has a measurement of 42 and is complementary to angle B whats the measure of angle B

Answers

48 degrees. a complementary angle has to equal 90 degrees so you have to take 90 and subtract 42 and the answer is 48

Answer:48

Step-by-step explanation:

4x²+8x=1 by completing the square

Answers

First thing you do is subtract both sides by 1.
Then divide everything by 4, to remove the 4x².
After completing the square, you multiply the 4 back in.

Photo attached.
Hope the answer is right >-<
Have a Brainly day!

Other Questions

What is 8+4d=5d i really need help

Please help solve this, I solved it on my own but I think my calculations are wrong. here is the problem, b-(b+a×4c÷4); use; a=-6, b=1, and c=2?

15x - 12y =1330x +9y =4whats the value of x

PLZZZ ANSWERR 20 points Select correct answerIn the figure, angle A measured 41* and angle D measures 32*. What is the he measurements of angle E