Find the value of x in each case:

Answers

Answer 1

Answer:

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Subtract and simplify 10 - 5 1/8
Geoffrey ate 2/3 of a mini pizza. Claire ate 1 3/4 times as much pizza as Geoffrey. How many mini pizzas did Claire eat? PLZ HELP I NEED AN ANSWER RIGHT AWAY!Express your answer in simplest form.A. 1 1/6B. 2 5/12C. 2 5/8D. 8/21
Alex spent 25% of his money on a sports drink. Then he spent 25% of the remaining money on trail mix. He has $9 left. How much money did Alex begin with?
GuYS PLEASE HELP I WILL MARK AS BRAINIEST IF YOU EXPLAIN WELL. ANYWAYS, SOLVE EACH EQUATION BY FACTORING. R^2+9R+8=0 SO MY QUESTION IS HOW DO I DO THIS PLEASE HELP

15% of Alina’s workout consisted of cardio exercise. 25% of Dane’s workout consisted of cardio exercise. Which statement must be true?If they worked out for the same amount of time, Dane did 10 more minutes of cardio exercise than Alina.

If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

If both workouts were 60 minutes, Dane spent 8 more minutes on cardio exercise than Alina did.

Alina spent less time on cardio exercise than Dane did.

Answers

The correct answer is B. If Alina’s workout was 80 minutes, and Dane’s workout was 48 minutes, they spent the same amount of time on cardio exercise.

To figure this out, first find 15% of 80 and then 25% of 48.

To find 15% of 80, you can first find 10% of 80 which is 8(just move the decimal one place to the left). The remaining 5% will be half of 8 since 8 is 10%. Add both the numbers up and you will get 12. (8+4=12)

To find 25% of 48, you can divide 48 by 4. Since percent means 'out of 100', 25% is 25 of 100. 100 divided by 25 is equal to 4. So, 48 divided by 4 is equal to 12.

So, the final answer is B. They both equal to 12.

Hope it helps :)

A salesperson's ratio of successful signups to the number of people called is 0.275 . This month, the salesperson had 55 signups. How many people did the salesperson call this month?

Answers

The main part for understanding this problem lies in the fact that the ratio has been expressed in decimal form. Once that mystery is solved, the problem becomes easy.
Ratio of the successful signups to the number of people attending = 275:1000
The number of people that the sales person successfully signed up = 55
Let us assume the common ratio to be = x
Then
275x = 55
x = 55/275
= 0.2
then
The number of people that the sales
person called up this week = 1000 * 0.2
= 200
So the number of people that the sales person called this week is 200. I hope the procedure is simple enough for you to understand.

55 divided by 0.275 =
200 people
CHECK
55 divided by 200 = 0.275

How can I solve this system of linear equations by substitution 3x-2y=9 and y=2x-7

Answers

y=2x-7
therfor we can SUBSITUTE 2x-7 for y whereever we see y in the other equation

3x-2(2x-7)=9
3x-4x+14=9
-x+14=9
minus 14 both sides
-x=-5
mulitly -1
x=5

sub back

y=2x-7
y=2(5)-7
y=10-7
y=3

(5,3)

Four times what equals thirty?

Answers

Hi there!

Great question! :D

To figure out our unknown value, we can replace our unknown value, or blank space, with x.

So our equation would look something like $4x = 30$

We have a variable next to a number to show we are multiplying. But since we're figuring out an unknown, we'll do the opposite, which is division.

$4x = 30$

We'll divide both sides by our 4.

$(4x)/(4) = (30)/(4)$

We can eliminate the variable right away on our left side of our equation. This makes it look like there's not a lot of steps through solving.

$(30)/(4) = 7.5$

Final answer:

$x = 7.5$

When in doubt of your answer, we can multiply 4 by 7.5 and see what we get. We should get 30.

$4 * 7.5 = 30 :)$

We were right!

Hope this helps! :D

4x=30
4x/4=30/4
x=7.5

Hope this helps!!

What's the answer to 22+4y-14=0

Answers

y=-2You combine like terms which would be -14 and 22. 22-14=8. Then you subtract that from 0. 0-8=-8. Then divide -8 by 4y. -8÷4=-2

What's the multiplicative inverse of -5 and 10 -5

Answers

the answer is 5 and idek how to explain it... just use you brain