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3 years ago

9

8th grade easy math help

1 answer:

liraira [26]3 years ago

7 0

1. C=10d+30
2. Function 1, function 1’s ROC is 2 and function 2’s is 1

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Two angles are supplementary. The larger angle is 15 more than 10 times the smaller angle. FInd the measure of each angle.

garik1379 [7]

$\text{Larger angle} =x\\\\\text{Smaller angle} =y\\ \\\text{According to the condition,}\\\\x=10y+15\\\\\text{The two angles are supplementary, so their sum is}~ 180^{\circ} \\\\x+y=180\\\\\implies 10y+15 +y = 180\\\\\implies 11y = 180-15\\\\\implies 11y=165\\\\\implies y = \dfrac{165}{11}\\\\\implies y = 15\\\\\text{So,} ~x =180-15 = 165\\\\\text{Hence the larger angle is}~ 165^{\circ}~ \text{and the smaller angle is }15^{\circ}$

7 0

2 years ago

There're some old video games you sell on Ebay for $6, $7 and $9. The titles include " The Pirates", "Under the sea" and "The dr

aniked [119]

Answer:

2/9

Step-by-step explanation:

We have 3 video games

I will assume that pirates have a water theme, so 2 have a water theme

That leaves 1 game with no water theme

P (no water theme) = games with no water theme/ total

=1/3

The games are 6 7 and 9 dollars

2 games are at least 7 dollars

P( at least 7 dollars) = games at least 7/ total

=2/3

P ( no water theme at least 7 dollars) = P (no water theme) * P( at least 7 dollars)

= 1/3*2/3

= 2/9

6 0

3 years ago

Read 2 more answers

Select the ordered pairs that satisfy the equation y=1/5x.Check all that apply.

vovikov84 [41]

Answer: C, E, F

Step-by-step explanation:

Plug in the "x" and "y" values from the ordered pairs into the equation.
For A: 3 = $\frac{1(5)}{5}$ → 3 ≠ 1 → A is eliminated.
For B: 5 = $\frac{1(1)}{5}$ → 5 ≠ $\frac{1}{5}$ → B is eliminated.
For C: 2 = $\frac{1(10)}{5}$ → 2 = 2 → C satisfies the equation.
For D: 10 = $\frac{1(4)}{5}$ → 10 ≠ $\frac{4}{5}$ → D is eliminated.
For E: -1 = $\frac{1(-5)}{5}$ → -1 = -1 → E satisfies the equation.
For F: 3 = $\frac{1(15)}{5}$ → 3 = 3 → F satisfies the equation.
Therefore, C, E, and F are the answers.

4 0

3 years ago

Read 2 more answers

What is the equation of the following line? Be sure to scroll down first to see all answer options.

Yuri [45]

Answer:

D: y=6x

Step-by-step explanation:

y=mx+b

b=0

y=mx

-3=m * (-1/2)

m=6

y=6x

3 0

3 years ago

The ratio of the number of left-handed batters to the number of right handed batters is 5:8. There are 45 left-handed batters. H

OleMash [197]

5/8=45/x
45×8=5x
360=5x
360÷5
72

3 0

3 years ago