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Degger [83]
3 years ago
10

503 and 2/3 as a decimal

Mathematics
1 answer:
dimaraw [331]3 years ago
7 0
503 2/3 = 503.66 <== ur decimal


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Find the height of a cone with volume 4034.66 cm^3 and radius 13 cm.
pav-90 [236]
Volume of cone=4034.66cm^3
Pi×r^2×h/3=4034.66
Pi×13×13×h=4034.66×3
22×13×13×h/7=4034.66×3
h=4034.66×3×7/13×13×22
h=45.57
So h=45.6cm
8 0
3 years ago
What number divided by -7 is equal to -15​
steposvetlana [31]

Answer:

x = -105

Step-by-step explanation:

<u>What number</u> <u>divided by</u> <u>-7</u> <u>is equal to</u> <u>-15​</u>

         ∨                   ∨          ∨         ∨         ∨

         x                   ÷          -7         =        -15

Multiply -7 to both sides:

\frac{x}{-7}=15

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3 0
2 years ago
How many liters each of a 35% acid solution and a 80% acid solution must be used to produce 60 liters of a 65% acid solution? (R
serg [7]

Solving a system of equations we will see that we need to use <u>40 liters of the 80% acid solution</u>, and the other <u>20 liters are of the 35% acid solution</u>.

<h3>How many liters of each solution do we need to use?</h3>

First, we need to define the variables:

  • x = liters of the 35% acid used.
  • y = liters of the 80% acid used.

We know that we want to produce 60 liters of 65% acid, then we have the system of equations:

x + y = 60

x*0.35 + y*0.80 = 60*0.65

(in the second equation we wrote the percentages in decimal form).

To solve this we need to isolate one of the variables in one equation and then replace it in other one, isolating x we get:

x = 60 - y

Replacing that in the other equation:

(60 - y)*0.35 + y*0.80 = 60*0.65

y*(0.80 - 0.35) = 60*(0.65 - 0.35)

y*0.45 = 60*0.30

y = 60*0.30/0.45 = 40

So we need to use <u>40 liters of the 80% acid solution</u>, and the other <u>20 liters are of the 35% acid solution</u>.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

7 0
2 years ago
Write an equation. <br><br>Four more than the product of three and a value x is equal to ninteen​
Step2247 [10]

Answer:

see explanation

Step-by-step explanation:

The product of 3 and x is 3x

Four more than this product is 3x + 4, thus

3x + 4 = 19 ← is the equation

5 0
2 years ago
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Angel is x years old, in 15 years how old will Angel be?
Verizon [17]

The age would increase by 15 years that is, x+15

8 0
3 years ago
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