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Ber [7]
2 years ago
8

Alison had 310 rocks in her rock collection. After three months, her collection increases by 40%. How many rocks does Alison hav

e now?
Mathematics
1 answer:
satela [25.4K]2 years ago
5 0

Answer:

434

Step-by-step explanation:

310 times .4 (percentage) = 124 which is how much she gained, then you add that onto the original amount to find how many she has now, which is 434

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PLEASE HELP ITS DUE REALLY SOON!!!
oksian1 [2.3K]

Answer:

-(5x-21)/6 so d

Step-by-step explanation:

to do inverse functions you want to replace the x in the function with y so x=(21-6y)/5, then solve for y and you will get the answer I got and its d

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The figure is made up of 2 cones and a cylinder. The cones and cylinder have a 4 cm diameter.
Nina [5.8K]
20 cm is the answer good luck
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The angle Johnny holds his pen on paper creates a linear pair. The measure of one angle is 13x + 7. The
tresset_1 [31]
<h3>The value of x is 4.10</h3>

<em><u>Solution:</u></em>

Given that,

The angle Johnny holds his pen on paper creates a linear pair

Angles in a linear pair are supplementary angles

Two angles are supplementary, when they add up to 180 degrees

The measure of one angle is 13x + 7

The  measure of the second angle is one less than twice the first angle

Therefore,

Measure of second angle = twice the first angle - 1

Measure of second angle = 2(13x + 7) - 1

Measure of second angle = 26x + 14 - 1

Measure of second angle = 26x + 13

Therefore,

Measure of first angle + measure of second angle = 180

13x + 7 + 26x + 13 = 180

39x + 20 = 180

39x = 180 - 20

39x = 160

x = 4.1

Thus value of x is 4.10

3 0
3 years ago
Elias and Mark together have $756.80. Elias has $489.50. Write and solve an addition equation to determine how much money Mark (
Degger [83]

Answer:

489.5 + m = 756.80 (the amount elias has, added to marks is equal to the total

(756.8- 489.5 = 267.30 which is the amount mark has.)

m= 267.3

the last option is the correct option

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLZ HELP ME I NEED THIS FAST
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The answer is D :) II hope that this helps and if you need a bigger description I can help
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3 years ago
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