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Iteru [2.4K]
3 years ago
10

Someone painted 2/5 of a wall with 1/3 of a gallon of paint how much will they need to paint the rest of the wall? math problem

Mathematics
1 answer:
Allisa [31]3 years ago
7 0
2/5+1/3=3/8(paint)-rest
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Chris made a solid by joining two identical rectangular prisms as picture below. The overall dimensions of the composite solid a
Neporo4naja [7]

Answer:

area of a square prism is 2×a square +4ah

3 0
2 years ago
BRAINLIEST..........show expressions too<333
vovikov84 [41]

Answer:

9.) t=.05m+20

10.) t=.10m+5

11.) 300 minutes of calling would make the two plans equal.

12.) Company B.

Step-by-step explanation:

Let <em>t</em> equal the total cost, and <em>m,</em> minutes.

Set up your models for questions 9 & 10 like this:

<em>total cost = (cost per minute)# of minutes + monthly fee</em>

Substitute your values for #9:

t=.05m+20

Substitute your values for #10:

t=.10m+5

__

To find how many minutes of calling would result in an equal total cost, we have to set the two models we just got equal to each other.

.10m+5=.05m+20

Let's subtract 5 from both sides of the equation:

.10m=.05m-15

Subtract .05m from both sides of the equation:

.05m=15

Divide by the coefficient of m, in this case: .05

m=300

__

Let's substitute 200 minutes into both of our original models from questions 9 & 10 to see which one the person should choose (the cheaper one).

Company A:

t=.05(200)+20

Multiply.

t=10+20

Add.

t=30

Company B:

t=.10(200)+5

Multiply.

t=20+5

Add.

t=25

<em />

6 0
3 years ago
To prove the circles are similar, which sequence of transformations will map circle A with center (-5, -4) and radius 18 to circ
PSYCHO15rus [73]

Answer:

<h2>Translate <3, 7> then dilate by scale factor of 1/3</h2>

Step-by-step explanation:

-2 - (-5) = 3

3 - (-4) = 7

6/18 = 1/3

6 0
2 years ago
Gina opened a bank account with $40. She plans to add $20 per week to the account and not make any withdrawals. After how many w
ZanzabumX [31]

Answer:

After 33 weeks.

Step-by-step explanation:

Let w be number of weeks.

We have been given that Gina opened a bank account with $40. She plans to add $20 per week to the account and not make any withdrawals. So the balance after w weeks will be 20w+40.

To figure out number of weeks Gina will have exactly $700 in her account, we will equate the balance after w weeks to 700.

20w+40=700

Let us subtract 40 from both sides of equation.

20w+40-40=700-40

20w=660

Upon Dividing both sides of our equation by 20 we will get,

\frac{20w}{20}=\frac{660}{20}

w=\frac{660}{20}

w=33

Therefore, after 33 weeks Gina will have exactly $700 in her account, excluding interest.

6 0
3 years ago
The price of a video game at Game Word has increased from $36 to $45 each. What was the percent change?
andriy [413]

Step-by-step explanation:

price difference= $45-$36

=$9

now,

x% of $45=$9

or, x/100 ×45 =9

or, x/20 ×9=9

or, x/20=1

therefore, x= 20%

3 0
3 years ago
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