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Debora [2.8K]
3 years ago
7

I need help with m-3 over 4 = m-3 over 5

Mathematics
1 answer:
MariettaO [177]3 years ago
6 0
M=3

You would begin by cross multiplying and then solving it from there:

5(m-3)=4(m-3)
5m-15=4m-12
5m-4m=-12+15
m=3
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Can someone help me with this?
Damm [24]

Answer:

<h2>780</h2>

Step-by-step explanation:

What is the sum of the series 5^n from n=1 to 4.

5^1 + 5^2 + 5^3+ 5^4 =

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3 years ago
A. Write an expression for the area of the shaded region.
tekilochka [14]

Answer:

A. 25x² - 64

B. (5x + 8)(5x - 8)

Step-by-step explanation:

A. The area of the shaded region = area of the whole large square - area of the 4 smaller squares

= (5x*5x) - 4(4*4)

Area of shaded region = 25x^2 - 64

B. The expression, 25x^2 - 64, is the difference of two perfect squares, 25x² and 64. Therefore, apply the rule of factoring difference of two perfect squares.

Thus, a^2 - b^2 = (a + b)(a - b)

Therefore, the expression of the are of the shaded region can be expressed in factored form as:

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4 0
3 years ago
Is -0 greater then 0
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3 years ago
Read 2 more answers
A grocer bought some walnuts for 45¢ per pound and some pecans for 60¢ per pound. He wants to mix the pecans and walnuts togethe
ladessa [460]
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Weight of walnuts in mixture = x pounds

So, total cost of walnuts in the mixture = 45x
This gives the cost in cents. The cost in dollars will be = 0.45x

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Since total weight of the mixture is 90 pounds. The weight of pecans in the mixture will be (90 - x) pounds.

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x pounds of walunts and (90-x) pounds of pecans are mixed to produce a mixture to sell at 55 cents per pound. So,we can set up the equation for this case as:

Cost of Walnuts + Cost of Pecans = Cost of Mixture

0.45x+(90-x)*0.60=90(0.55)

Using this equation, we can find the weight of walnuts, using x we can also find the weight of pecans. From weights we can then calculate the cost of walnuts and pecans used in the mixture.

7 0
3 years ago
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