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3 years ago

PLZS help need by today!

Mathematics

1 answer:

eimsori [14]3 years ago

7 0

Answer:

Step-by-step explanation:

We know that the expression is equal to 110° since it is a vertical angle. So what we do is we ad 10 to both sides of the equation. We are left with 8x=120 so if we divide 120/8 we get 15 which would leave it as x=15. Now plug it in and check it.

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Katie is twice as old as her sister Mara. The sum of their ages is 24. Find their ages.

Alenkasestr [34]

So k=katie's' age
m=mara's age

k is 2 times as old as m
k=2m

sum is 24
add means sum
k+m=24

so we have
k+m=24 and
k=2m
subsitute
2m+m=24
add
3m=24
divide both sides by 3
m=8
subsitute again
k=2m
k=2(8)
k=16

katie=16
mara=8

4 0

3 years ago

What is the range of the data?

PilotLPTM [1.2K]

Answer:

is the difference between highest and lowest values.

Step-by-step explanation:

6 0

2 years ago

Pls help i dont understand :( will give Brainliest + 25 Points

umka21 [38]

It’s D. 4 is the one next to X because that’s what is changing and -3 is the y intercept which comes after X

3 0

3 years ago

Read 2 more answers

Jake’s measures the height of a tree to be 74 3/8

goblinko [34]

I'm assuming the question is asking how tall the tree is if it has grown 2 3/4 inches.

The initial height of the tree is 74 3/8 inches and it grows 2 3/4 inches after six months. We can add these two numbers together to calculate the height of the tree now.

$74\frac{3}{8} + 2\frac{3}{4}$

Since these are both mixed numbers, we must find a common denominator to add our fractions. 8 is the lowest common denominator for 4 and 8. So:

$74\frac{3}{8} + 2\frac{6}{8}$

We can now add our whole numbers up (74 + 2) and add the numerators of the fractions together to get a single fraction ( $\frac{3}{8} + \frac{6}{8}$ ).

74 + 2 = 76

$\frac{3}{8} + \frac{6}{8} = \frac{9}{8}$

Putting these two together, we get $76 \frac{9}{8}$ , which is equal to $77\frac{1}{8}$ .

We can also turn this answer into an improper fraction. This is done by multiplying the whole number by the denominator and adding the numerator. So in this case:

77 x 8 = 616

616 + 1 = 617

The denominator stays the same, so our answer as an improper fraction would be $\frac{617}{8}$ .

So the tree is $77\frac{1}{8}$ inches tall, or $\frac{617}{8}$ inches tall.

7 0

3 years ago

:) i need help with this, work not needed

nata0808 [166]

Answer:

Negative leading coefficient

Step-by-step explanation:

The graphs goes up but eventually goes back down

6 0

2 years ago