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GaryK [48]
3 years ago
14

Help me on 7 And 8 ASAP

Mathematics
2 answers:
Semmy [17]3 years ago
7 0

Answer:7.)A

8.)C

Step-by-step explanation:

GREYUIT [131]3 years ago
3 0

Answer:

7. B. 100 miles in 3 hour

8. C. 875 miles in 9 hour

Step-by-step explanation:

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PLEASE HELPTH ME (MODERATORS STOP I REPEAT STOP REMOVING MY QUESTIONS BRO)
kompoz [17]

Answer:

X=75

Y=110

Step-by-step explanation:

A straight line is 180, so add the equations that make a line and set them equal to 180

x+20+x+10=180

Combine like terms

2x+30=180

Subtract 30 from both sides

2x=150

Divide by 2

X=75

Same for y

y+y-40=180

2y-40=180

Add 40 to both sides

2y=220

Divide by 2

Y=110

5 0
3 years ago
Evaluate the polynomial 6x - y for x= -3 and Y=2.<br> A.15 <br> B. -20<br> C.4<br> D.-16
ra1l [238]
I think the answer is B.
6(-3)=-18, and y=2
so 6x-y=-18-2=-20
6 0
2 years ago
In isosceles triangle ABC, AC=BC=20, the measure of angle A=68, and CD is the altitude to side AB. What is CD to the nearest 10t
antiseptic1488 [7]

Answer:

Step-by-step explanation:

Comment

The way the diagram looks when it is drawn is that you are going to need the sine function to solve for the side opposite which is CD.

Formula

Sin(A) = Sin(68 = opposite / hypotenuse     Substitute values.

Solution

sin(68) = altitude (side opposite) / 20       multiply both sides by 20

20*sin(68) = 20* altitude / 20                     substitute for sin(68)

20* 0.9272 = altitude

altitude = 18.5

Answer: 18.5 to the nearest tenth

3 0
1 year ago
If 20 is added to the number, the absolute value of the result is 6.
Aleonysh [2.5K]

Answer:

(20+x)*2=x-6

40+2x=x-6

40=-x-6

46=-x

check:

x=-46

20-46*2=-46-6

-26*2=-52

-52=-52

x=-46

8 0
3 years ago
Read 2 more answers
Misty bought 3 CDS . the country music CD cost $12 . The rock music CD cost 2/3 as much as the country music Cd . The platinum e
stich3 [128]
Lets organize out the numbers and calculate them,
so .....
Country music cd is $12
Rock music cd is 12× 2/3 = $8
Platinum edition cd is $8 x 2 = $16

add up all of the final numbers
<span>16+12+8 = $36

Your answer is
$36 </span>
7 0
3 years ago
Read 2 more answers
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