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3 years ago

20−6+4k=2−2k plz solve

Mathematics

2 answers:

Orlov [11]3 years ago

8 0

Answer:

-2

Step-by-step explanation:

jekas [21]3 years ago

4 0

Answer:

k=-2

Step-by-step explanation:

isolate the viarable by dividing each side by factors that contain the variable

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Please write an answer with NO FILES, NO LINKS, AND NO WRONG OR TRICK ANSWER!

vichka [17]

Answer:

18 inches

Step-by-step explanation:

A=L·H

108 in²=L·6 in

L= $\frac{108}{6}$

L=18 inches

7 0

2 years ago

Please help out !!!!

evablogger [386]

Answer:

x = 8

Step-by-step explanation:

you have similar triangles here

so 2 is to 4 as 4 is to x

2/4 = 4/x

x = 8

8 0

3 years ago

Question 7

serg [7]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

Given - a cone with volume 769?3 ft³ , having a height of 15 ft

To calculate - radius of the cone

We know that ,

$\bold{Volume \: of \: cone = \frac{1}{3}\pi \: r {}^{2} h }\\$

substituting the values in the formula stated above ,

$\bold{769.3 = \frac{1}{3} \times 3.14 \times r {}^{2} \times 15} \\ \\\bold{\implies r {}^{2} = \frac{769.3 \times 3}{3.14 \times 15} } \\ \\\bold{\implies r {}^{2} = \cancel\frac{2307.9}{47.1}} \\ \\\bold{ \implies \: r {}^{2} = 49} \\ \\ \bold{\implies \: r = 7 \: ft}$

therefore ,

radius = 7 cm

hope helpful ~

4 0

2 years ago

Write the equation of a line that is perpendicular to y=-2/7x + 9 and that passes through the point (-4,6) [FP]

siniylev [52]

Answer:

$y=(7/2)x+20$

Step-by-step explanation:

SInce the gradient of the first line is $-2/7$ then the gradien of the perpendicular line is $7/2$.

Therefore by the point slope formula the line that we are looking for is

$y-6=(7/2)(x+4)$

$y=(7/2)x + 20$

7 0

3 years ago

A question from my math class:

valina [46]

Answer:

A) $29.68

B) $5.60

Step-by-step explanation:

Part A Explanation)

To find the total cost including tax, you must multiply the total cost by .06 because .06 out of 1 is 6%. Quick explanation on percentages.

DO NOT FORGET TO ADD THE TOTAL COST

28.00 + (28.00 * .06) = 29.68

Part B Explanation)

This is asking only for the tip, not including the total cost. However, we need the total cost to calculate the tip.

28.00 * .20 = 5.6

.20 out of 1 is 20%

7 0

3 years ago