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3 years ago

Afamily pays 45 dollars each month for cable television. The cost increases 7%. What is a new monthly cost?

Mathematics

1 answer:

marishachu [46]3 years ago

8 0

Answer:

48.15

Step-by-step explanation:

We need to determine how much the cost goes up

45 * 7%

45 *.07

3.15

The price will go up 3.15

Add this to the old price to determine the new monthly cost

45+3.15

48.15

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Mike and Ken shared some stamps. \frac{1}{5} 5 1 of Ken's stamps were \frac{1}{3} 3 1 of Mike's stamps. If Mike gave Ken 24

Zielflug [23.3K]

Answer:

Mike had 72 stamps

Ken had 120 stamps

Step-by-step explanation:

Given

$M \to Mike$

$K \to Ken$

$\frac{1}{5} * K = \frac{1}{3} * M$

$K + 24 = 3 * ( M - 24)$

Required

Find K and M

Make K the subject in: $K + 24 = 3 * ( M - 24)$

$K = 3 * ( M - 24) - 24$

Substitute $K = 3 * ( M - 24) - 24$ in $\frac{1}{5} * K = \frac{1}{3} * M$

$\frac{1}{5} * [3 * ( M - 24) - 24] = \frac{1}{3} * M$

Open brackets

$\frac{1}{5} * [3M - 72 - 24] = \frac{1}{3} * M$

$\frac{1}{5} * [3M -96] = \frac{1}{3} * M$

Multiply both sides by 15

$3* [3M -96] = 5 * M$

$9M -288 = 5M$

Collect like terms

$9M -5M= 288$

$4M= 288$

Divide both sides by 4

$M= 72$

Substitute $M= 72$ in $K = 3 * ( M - 24) - 24$

$K = 3 * (72 - 24) - 24$

$K = 3 * 48 - 24$

$K = 120$

3 0

3 years ago

Kinda need help on both of these, will give brainliest btw

MissTica

Answer:this is gonna help you sm

Step-by-step explanation:

There’s an all called photo math, download it on ur phone and ur set

3 0

3 years ago

A square tile has a width of 1 foot. How many tiles will fit end-to-end along a<br> 4-foot wall?

lozanna [386]

Answer: 4 tiles

Explanation: if the square has a width of one foot then the length is also one foot since all sides are equal. Therefore 4 squares can fit along a 4 foot wall

3 0

4 years ago

Read 2 more answers

ONLY ANSWER IF YOU KNOW IT PLEASE BEST ANSWER ILL GIVE BRAINLIEST!!!

wlad13 [49]

Answer:

its associative prop of addition

Step-by-step explanation:

4 0

3 years ago

Please help me anyone !!!!

Marrrta [24]

Answer:

If you rotate the triangles so that they look the same, one side of both of them are labeled. This gives you the fraction 9/12, or 3/4. The smaller triangle is 3/4th of the larger one. If the larger triangle has 4 on one side, then let's make the equation 3/4 = y/4. The length of y is 3. :)

4 0

3 years ago