3 years ago

Help me solve this please :)

Mathematics

2 answers:

nordsb [41]3 years ago

3 0

Answer:

Step-by-step explanation:

julsineya [31]3 years ago

3 0

Answer: i think is 8.07

Step-by-step explanation:

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An equilateral triangle has a perimeter of 30x + 15. What is the length of each side of the triangle?

Ymorist [56]

Answer:

10x + 5

Step-by-step explanation:

$length \: of \: each \: side \: of \: equilateral \: \triangle \\ = \frac{perimeter}{3} \\ \\ = \frac{30x + 15}{3} \\ \\ = \frac{3(10x + 5)}{3} \\ \\ = 10x + 5 \\$

7 0

3 years ago

the ratio of stars to stripes is 50 to 13. If there were 400 stars in the parade, how many stripes were there?

Black_prince [1.1K]

I believe it's 104. You would set it up as a fraction so:
50/13 and 400/x.
Then you would cross multiply so 13x400 is 5,200. So this divided by 50 = 104. Hope I helped!

5 0

3 years ago

What is m∠C? Enter your answer in the box.

Tems11 [23]

Answer:

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3 years ago

A 120-gallons (gal)tank initially contains 90 lb of a salt dissolved in 90 gal of water. Brine containing 2 lb/gal of salt flows

Anna007 [38]

Answer:

The tank will contain 202 Ib of salt when it's full.

Step-by-step explanation

To find the amount of salt in the tank at time t= x(t)

If x(0)= 90Ib

To find the volume of the tank at time t

V(t)= 90+(4-3)t=90+t gal

Other solutions are found attached

Download docx

6 0

3 years ago

Please help it would be very appreciated

ahrayia [7]

I think the answer is 5

3 0

3 years ago