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zubka84 [21]
2 years ago
11

Need go find the percentage of change 4. 90 meters to 54 meters​

Mathematics
1 answer:
inessss [21]2 years ago
8 0

Answer:

40% decrease

Step-by-step explanation:

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SOMEONE PLEASE HELP ASAP!!!!!
Margaret [11]

Answer:

<em>x = 1</em>

<em>y = 1</em>

Step-by-step explanation:

<u>System of Equations</u>

We are given the system of equations:

2x + y = 3

x = 2y - 1

Substituting x in the first equation:

2(2y - 1) + y = 3

Operating:

4y - 2 + y = 3

5y = 3 + 2

y = 5/5 = 1

y = 1

Since:

x = 2y - 1

Then:

x = 2(1) - 1

x = 1

Solution:

x = 1

y = 1

7 0
3 years ago
A circular rim 28 inches in diameter rotates the same number of inches per second as a circular rim 35 inches in diameter. if th
Oxana [17]
1 revolution of a circle = circumference of that circle.

<span>1 revolution of a circle with the diameter of 28 inches = </span><span><span>πd=28π</span><span>πd=28π</span></span><span> inches. Hence, x revolutions per second = </span><span><span>28πx</span><span>28πx</span></span><span> inches per second = </span><span><span>60∗28πx</span><span>60∗28πx</span></span><span> inches </span>per minute.

<span>Given that </span><span><span>60∗28πx=35πn</span><span>60∗28πx=35πn</span></span><span> --> </span><span><span>n=<span><span>60∗28πx</span><span>35π</span></span>=48x</span><span>n=<span><span>60∗28πx</span><span>35π</span></span>=48x</span></span><span>.</span>
7 0
2 years ago
p Mes mm place .5 35 yards long She needs to cut frees 3 in it s we greatest number of pieces that she can ea A
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She will have aprox. 40 pieces of ribbon
5 0
3 years ago
Need help with this question
alexgriva [62]

Answer:

4 : 3

Step-by-step explanation:

QRS to VUT

\frac{QR}{RS} =\frac{VU}{UT} \\\\\frac{8}{12} =\frac{6}{x} \\\\8x=72\\x=9

\frac{RS}{UT} =\frac{12}{9} =\frac{4}{3}

3 0
2 years ago
Read 2 more answers
7(6 - 12) = -21 what is c
Dovator [93]
What do you mean? Question not clear.
8 0
3 years ago
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