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3 years ago

What is the value of x?

Mathematics

1 answer:

STatiana [176]3 years ago

3 0

I thought it was 5 because the 55 degrees given is equal to the angle above it. If you look, there are 4, 90 degree angles so the 8x-5 has to equal 35 to make 90 but idk

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Evaluate each geometric series described 3 + 6 +12 + 24 n=7

baherus [9]

Process:

1. 21+24n= 7
2. 24n= 7 - 21
3. 24n= -14

Answ: n= -7/12

3 0

3 years ago

Work out 5.2 % of 628.55 km Give your answer rounded to 2 DP.

Setler [38]

18.63 is your answer please give brainliest!

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3 years ago

What is the slope of the linear equation below?

spayn [35]

Answer:

-5

Step-by-step explanation:

-5 is the slope because it is the multiplier of x

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3 years ago

260 years equals:

uranmaximum [27]

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3 years ago

Read 2 more answers

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago