All categories

3 years ago

SOMEONE HELP ME PLEASE

Mathematics

1 answer:

yawa3891 [41]3 years ago

8 0

Answer:

x=8

Step-by-step explanation:

the y-value in the first pair decreased by half, so the x-value must double due to inverse variation.

You might be interested in

Factor 2y^2+7y-14=0 How do I solve this by factoring ?

Gre4nikov [31]

Answer:

y=−7−(√161/4), −7+(√161)/4

Decimal form- y=1.42214438, -4.92214438

Step-by-step explanation:

3 0

3 years ago

Find the value of PR if Q is between P and R when PQ=25, PQ=2x+1, and QR=x. X ат X=8

Eva8 [605]

Answer:

$PR = 37$

Step-by-step explanation:

Given

$PQ = 25$

$PQ = 2x +1$

$QR = x$

Required

Since Q is between the given points, then:

$PR = PQ + QR$

This gives:

$PR = 2x + 1 + x$

Collect like terms

$PR = 2x + x+ 1$

$PR = 3x + 1$

Next, solve for x

We have:

$PQ = 25$

$PQ = 2x +1$

This gives:

$2x + 1 = 25$

Collect like terms

$2x = 25 -1$

$2x = 24$

Divide by 2

$x = 12$

So:

$PR = 3x + 1$

$PR = 3 * 12 + 1$

$PR = 37$

7 0

3 years ago

Carl and Tamera want to compare their tests in math class. They have taken six tests. Should they use the mean, median or mode t

Roman55 [17]

Answer:

Mean

Step-by-step explanation:

I said mean because it would allow both Carl and Tamera to average their scores and compare one side by side rather than comparing 6 each which would just be time consuming and it seems like it wouldn't be any other choices.

7 0

2 years ago

Factor 2x+4 (Please and Thanks)

lara31 [8.8K]

2 is common factor
2x=2(x)
4=2(2)

ab+ac=a(b+c)
2(x)+2(2)=2(x+2)

6 0

3 years ago

80 points if you answer this question!

Neporo4naja [7]

Total amount of Carbon-14
$= 12 - (0.00012 \times 5000)$
$= 12 - 0.6$
$= 10.4$
=C

Full marks answer

8 0

3 years ago

Read 2 more answers