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Levart [38]
3 years ago
13

5y + 4x = 8 y + 5x = 10 What’s the answer need it nowww

Mathematics
1 answer:
Ne4ueva [31]3 years ago
8 0

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Find the surface area of a rectangular prism measuring<br> 5 m by 8 m by 9 m.
olganol [36]
The formula of the surface area of the rectangular prism is equal:
A=2(wl+wh+lh)
where:
l - length
w - width
h - height
We have:
l = 5m
w = 8m
h = 9m
Substitute:
A=2\cdot(5\cdot8+5\cdot9+8\cdot9)=2\cdot(40+45+72)=2\cdot157=314\ m^2

3 0
3 years ago
A person has three times as many nickels as quarters. if the total face value of these coins is $4.40, how many of each type of
saul85 [17]
3 nickels and 1 quarter add to $0.40.
The person has 11 times that amount, so has 11 quarters and 33 nickels.
6 0
3 years ago
A.step 1<br> B.step 2<br> C.step 3<br> D.step 4<br><br> Please help
Marizza181 [45]

Answer:

Step 3

Step-by-step explanation:

7 0
3 years ago
Which is another way to check the sum of 104 + 34 + 228 + 877?
weqwewe [10]

By adding 104+34 and then 228+877, Then adding both of the results and finally subtracting the answer by one of the factors.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Explanation:

Which will be...

104+34=138

228+877=1,105

Then add them...

138+1,105=1,243

Finally, subtract your answer by one of the factors...

1,243-1,105

Which will result as 138. Which is also one of the factors you added earlier, that's basically what your looking fro when checking and subtraction and/or addition problem.

5 0
3 years ago
The curve y= (1-x)/(x-3) is concave up when:
Diano4ka-milaya [45]
Use quotient rule to find y"
y" = [-(x-3)-(1-x)]/(x-3)^2 = 2/(x-3)^2
y" = -4/(x-3)^3
 -4/(x-3)^3 > 0
 (x-3)^3 < 0
 x-3 < 0
 x< 3

hope this help
7 0
4 years ago
Read 2 more answers
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