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Reika [66]
3 years ago
12

Plz help me answer these two questions instantly and plz explain thx

Mathematics
1 answer:
Inessa05 [86]3 years ago
6 0
5. A
6. No, 1/5(25x+15)-7x= -2x+3
-2(x-5)= -2x+10
-2x+3 is not equal to -2x+10
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Please answer quickly!!!!
Natalka [10]
The volume of the rectangular prism can be found with the formula
v= length × width × height
V = 10×10×30 = 3000

the volume of the triangular prism can be found with
v = 1/2(base×width×height)
v=1/2×30×9×10 = 1/2×2700
v = 1350

Now add the two volumes together for the total volume...

3000+1350 = 4,350 in^3
5 0
3 years ago
Solve this equation<br>-2(4-7)+5(4+7)​
gayaneshka [121]

You can simplify this expression with PEMDAS (parentheses, exponents, multiplication/division, addition/subtraction)

Start with the expressions in the parentheses:

4-7=-3

4+7=11

The expression now reads -2(-3)+5(11).  Now, simplify the multiplication expressions:

-2*-3=6

5*11=55

The expression is 6+55 which is 61.

Hope this helps!!

6 0
3 years ago
Solve the equation 2x - 3y = 18
Ratling [72]
The answer is  

x=9+ \frac{3}{2} y
3 0
3 years ago
the same cafe uses 18.5 cups of flour to make 100 servings of pancakes.how many cups of flour are in one serving of pancakes?
Fiesta28 [93]
Answer=0.185 cups
  18.5         x
______=_____
  100          1

cross multiply
100x=18.5
divide both sides by 100
x=0.185cups
7 0
2 years ago
(PLZ HELP THIS IS ALGEBRA)
gregori [183]

Answer:

Step-by-step explanation:

7 0
2 years ago
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