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Kipish [7]
3 years ago
15

Help me answer this please!! will mark brainliest

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0

Answer:x=3.5

Step-by-step explanation:if DEF~XYZ

DE/XY=DF/XZ

XZ=DF×XY/DE

XZ=10.5

3x=10.5

x=3.5

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A sphere has a volume of 36pi in^3 . Find the volume radius of the sphere.
sergejj [24]

Hi

the volume formula is

V=4 /3 * πr3

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6 0
3 years ago
Read 2 more answers
Two mechanics worked on a car. the first mechanic worked for 10 hours, and the second mechanic worked for 15 hours. together the
Yuliya22 [10]
Let x and y be the rate per hour for Mechanic 1 and 2 respectively.

Then,
x+y=205 ---------- (1)
Additionally,
10x+15y = 2500 ------ (2)

Solving equations 1 and 2;
Multiply (1) by 10 and subtract two from the result,
10x+10y = 2050
10x +15 y =2500
----------------------
        -5 y = --450 => y = 450/5 = $90
Then,
x= 205-90 = $115

Therefore,
Mechanic 1 charged $115 per hour
Mechanic 2 charged $90 per hour
3 0
3 years ago
Question 5
ladessa [460]

Answer:

C is correct

Step-by-step explanation: c is correct great job

7 0
2 years ago
Show how to solve the problem 378 times 6 using place value with regrouping. Explain how you knew when to regroup
VashaNatasha [74]

300*6 + 70*6 + 8*6

1800 + 420 + 48

2268


5 0
3 years ago
Use the fact that 2 1/2 divide 1/8 =20 to find 2 1/2 divide 5/8
Tasya [4]

Answer:

4

Step-by-step explanation:

Given that 2\frac 1 2 \div \frac 1 8 =20

\Rightarrow \frac 5 2 \div \frac 1 8 =20

\Rightarrow \frac 5 2 \times 8 1 =20 \cdots(i)

Now, 2\frac 1 2 \div \frac 5 8 = \frac 5 2 \div \frac 5 8=\frac 5 2 \times \frac 8 5

This can be written as

\frac 5 2 \times \frac 8 5=\frac 5 2 \times \left( \frac 8 1 \times \frac 1 5\right) [as \frac 8 5=\frac 8 1 \times \frac 1 5]

=\left(\frac 5 2 \times \frac 8 1 \right)\times \frac 1 5

=20 \times \frac 1 5 [ by using equation (i)]

=4

Hence, 2\frac 1 2 \div \frac 5 8=4

7 0
2 years ago
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