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Talja [164]
2 years ago
9

!!!!!!!HELP ASAP!!!!!!!!!

Mathematics
1 answer:
Scrat [10]2 years ago
4 0
7/28 = 4/?
4*28 = 112. (a) = 16
112 ÷ 7 = 16.

7/588 = 4/?
4*588 =2,352. (b) = 336
2,352 ÷ 7 = 336

7/686 = 4/?
4*686 = 2,744. (c) = 392
2,744 ÷ 7 = 392
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How do i solve for this? 19-13p=-17p-5=
Vsevolod [243]
19-13p=-17p-5
+5                +5
24-13p=-17p
   +13p   +13p
24=-4p
/-4   /-4
-6=p
7 0
3 years ago
Read 2 more answers
Calvin had 30 minutes in time-out. For the first 23 1/3 minutes, Calvin counted spots on the ceiling. For the rest of the time,
scoundrel [369]

Answer: \frac{20}{3}\ minutes or 6 \frac{2}{3}\ minutes

Step-by-step explanation:

For this exercise you can convert the mixed number to an improper fraction:

1. Multiply the whole number part by the denominator of the fraction.

2. Add the product obtained and the numerator of the fraction (This will be the new numerator).

3. The denominator does not change.

Then:

23\frac{1}{3}= \frac{(23*3)+1}{3}= \frac{70}{3}\ minutes

You know that he had 30 minutes in time-out, he counted spots on the ceiling for \frac{70}{3} minutes and the rest of the time he made faces at his stuffed tiger.

Then, in order to calculate the time Calvin spent making faces at his stuffed tiger, you need to subract 30 minutes and \frac{70}{3} minutes:

30\ min-\frac{70}{3}=(\frac{3(30)-70}{3})=\frac{20}{3}\ minutes or 6 \frac{2}{3}\ minutes

7 0
3 years ago
Read 2 more answers
You are painting the root of a boathouse. You are going to place the base of a ladder 12 feet from the boathouse. How long does
jolli1 [7]

Answer:

37 ft

Step-by-step explanation:

The ladder forms a right triangle as it elan's against the wall of the boat house.

Thus, the length of the ladder can be determined using Pythagorean theorem.

c² = a² + b²

c = length of ladder

a = 35 ft

b = 12 ft

Plug in the values

c² = 35² + 12²

c² = 1,225 + 144

c² = 1,369

c = √1,369

c = 37

Therefore, to reach the roof of the boathouse, the length of the ladder = 37 ft

4 0
3 years ago
By which angle measures can the regular pentagon be rotated so it maps onto itself?
vazorg [7]

Answer:

hi there the answer is 72

Step-by-step explanation:

sorry but my work is on a piece of paper in front of me

5 0
2 years ago
3x - 3y = 9 and x + 3y = 12 <br> Elimination
Firlakuza [10]

Answer:

x=5.25,y=2.25

Step-by-step explanation:

We can add the two equations to eliminate the variable y and solve for x:

3x-3y+x+3y=9+12

4x=21

x=5.25

Now, we can use substitution to solve for y:

x+3y=12 (given)

5.25+3y=12

3y=12-5.25

=6.75

y=2.25

Hope this helps :)

8 0
3 years ago
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