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2 years ago

Question 4 of 10

Mathematics

1 answer:

Studentka2010 [4]2 years ago

8 0

Answer:

Step-by-step explanation:

0.00000628

0000006.28×10^-6

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Four time a number r plus half a number s equals 12. Twice the number r plus one fourth of the numbers s equals 8. What are the

Snezhnost [94]

The system of equations have no solution.

Explanation:

The equations are $4r+\frac{1}{2}s=12$ and $2r+\frac{1}{4} s=8$

To find the two numbers, let us solve the equations using substitution method.

From the equation $2r+\frac{1}{4} s=8$ , let us determine the value of r,

$\begin{aligned} 2 r+\frac{1}{4} s &=8 \\ 2 r &=8-\frac{1}{4} s \\ r &=\frac{1}{2}\left(8-\frac{1}{4} s\right) \\ r &=4-\frac{1}{8} s \end{aligned}$

Let us substitute the value of r in $4r+\frac{1}{2}s=12$ , we get,

$\begin{aligned} 4\left(4-\frac{1}{8} s\right)+\frac{1}{2} s &=12 \\ 16-\frac{1}{2} s+\frac{1}{2} s &=12 \\ 16 &=12 \end{aligned}$

which is not possible.

This means that the system has no solution.

6 0

3 years ago

What is the product of 7/10×(-9)

Andrews [41]

Answer:

-6.3

Step-by-step explanation:

7/10 X -9/1 = -63/10 = -6.3

4 0

3 years ago

Whoever helps gets brainliest answer and 10 points :)

andrew11 [14]

I think 5?
These are the ages,

12, 12, 14, 15, 17,
28, 29,
40, 41, 44, 45,
50,
69

Only the people on the first row are under 19 and there are 5 people.

6 0

3 years ago

A. points V,U, and T and collinear

podryga [215]

I think the answer is d

3 0

2 years ago

Rewrite using the distributive property and GCF 16 + 40

Artist 52 [7]

The GCF of 16 and 40 is 8.

16/8 = 2

40/8 = 5

We can rewrite this using the distribute property like so:

Using the distributive property:

16 + 40

16 + 40 = 56

We can also add inside the parentheses and multiply and we'll get the same answer.

8(7)

8 0

3 years ago