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3 years ago

Can someone help with this please?

Mathematics

1 answer:

Fittoniya [83]3 years ago

7 0

Which question do you need help with?

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X + y = 8 3x - y = 12

Virty [35]

Answer:

x = 5 and y = 3

Step-by-step explanation

y crosses out so you are left with

4x = 20 (divide by 4)

x = 5

plug x into either equation

5 + y = 8 (subtract 5)

y = 3

7 0

3 years ago

A line passes through the points......

Kobotan [32]

Should be the first one

8 0

2 years ago

Read 2 more answers

rancho middle school has an average of 23/3/8 students per teacher. write this mixed number as a decimal

Len [333]

Rancho middle school has an average of 23 3/8 students per teacher.write this mixed number as a decimal.

Answer:

$23\frac{3}{8} = 23.375$

Step-by-step explanation:

Given:

The given mixed number is $23\frac{3}{8}$

We need to write the given mixed number as a decimal.

So, we find the decimal number by separating the parts.

$=23+\frac{3}{8}$

The value of $\frac{3}{8}=0.375$

$=23+0.375$

$=23.375$

Therefore, the decimal number of given mixed number is $=23.375$

8 0

2 years ago

Two fewer than a number doubled is the same as the number decreased by 38. if n is "the number," which equation could be used to

Alona [7]

$\displaystyle \\ 
\text{We use the following equation:} \\ \\ 
 \frac{n}{2} = n - 38 \\ \\ 
We solve for n: \\ \\ 
 \frac{n}{2} = n - 38 ~~\Big| \times 2 \\ \\ 
n = 2 \times n - 2 \times 38 \\ \\ 
n = 2n - 76 \\ \\ 
2n - n = 76 \\ \\ 
\boxed{n = 76} \\ \\ 
\text{Verification: } \\ \\ 
\frac{n}{2} = n - 38 \\ \\ 
\frac{76}{2} = 76 - 38 \\ \\ 
\boxed{38 = 38 ~~~ Correct }$

8 0

3 years ago

I have a few questions! a) x−1.27=4.09 b) 2.3−y=2.301 c) t+3.04=14.3 d) 1.1+k=5.67

maks197457 [2]

Answer:

a.) x = 5.36

b.) y = - 0.001

c.) t = 11.26

d.) k = 4.57

Step-by-step explanation:

a) x−1.27=4.09

b) 2.3−y=2.301

c) t+3.04=14.3

d) 1.1+k=5.67

Solving. right?

a.) x = 4.09 + 1.27 = 5.36

b.) y = 2.3 - 2.301 = - 0.001

c.) t = 14.3 - 3.04 = 11.26

d.) k = 5.67 - 1.1 = 4.57

5 0

2 years ago