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3 years ago

13

How do you solve this equation with substitution, I was absent for school today and wasn’t able to learn the subject please help

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1 answer:

Alenkasestr [34]3 years ago

3 0

Answer:

X=1 Y=6

Step-by-step explanation:

6x=-4x+10

10x=10

x=1

6×1=6

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I need help. (image below)

vovangra [49]

Answer:

∠5 = 35°

Step-by-step explanation:

∠5 = ∠2 because they are alternate interior congruent angles

∠5 = 35°

7 0

3 years ago

Cassie spends 2/3 of her money on supplies. Cassie spends her remaining money on 3 sandwiches. Each sandwich costs $5.25. How mu

Irina18 [472]

In words:
Three sandwiches, each costing $5.25, equals 1/3 of Cassie's total money

We can write the formula:

(5.25*3)=1/3x

Now solve:

15.75=1/3x
3(15.75)=x
x=$47.25
Hope this helps!!

3 0

3 years ago

Read 2 more answers

Fifteen times the square of a non-zero number is equal to 20 times number.What is the number? Its not 4/3

e-lub [12.9K]

The number is (2√3) / 3

To find the missing number, convert what it says in words to an equation:
$15 {x}^{2} = 20x$
Divide both sides by 15:
${x}^{2} = \frac{20}{15} \\ \\ {x}^{2} = \frac{4}{3}$
Take the square root:
$x = \sqrt{ \frac{4}{3} } \\ \\ x = \frac{2}{ \sqrt{3} } \\ \\ x = \frac{2 \sqrt{3} }{3}$

4 0

3 years ago

Find each square root

weqwewe [10]

Answer:

It actually gave you the answer.

Step-by-step explanation:

If you read closer, it's telling you the answer. It's giving you examples of radicals and such.

6 0

4 years ago

The mean temperature for the first 7 days in January was 4 °C. The temperature on the 8th day was 3 °C. What is the mean tempera

Bad White [126]

Answer:

Mean temperature for the first 8 days was $3.88^\circ$

Step-by-step explanation:

Mean = $\frac{4\cdot 7+3\cdot 1}{8}$

$=3.88^\circ$

Best Regards!

3 0

3 years ago

Read 2 more answers