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xxMikexx [17]
3 years ago
15

Allen started to save money from his daily allowance. In the first week he saved $5.8 and every next week $3.6 more than the pre

vious week. How much money did he save in 4 weeks?
Mathematics
2 answers:
Vikentia [17]3 years ago
6 0

Answer: $16.60

Step-by-step explanation:

5.80+ 3.60= 9.40+ 3.60= 13.00+ 3.60= 16.60

So after 4 weeks he earned $16.60

OverLord2011 [107]3 years ago
6 0

Answer:

$44.8.

Step-by-step explanation:

Let a = first term = $5.8

d = common difference = $3.6

n = number of terms = 4

Using the sum of terms

Sn = n/2((2a + (n - 1)d))

Sn = 4/2((2(5.8) + (4 - 1)3.6))

     = 2(11.6 + 10.8)

     = 2(22.4)

     = 44.8

In 4 weeks, Allen would have saved $44.8.

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<span>The triangle on paper is 5 inches wide by 7 inches high.</span><span>
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If 1 inch on paper is equal to 1.5 feet on paper, then you need to multiply all dimensions by 18 because 1.5 feet is equal to 18 inches and you are getting 18 inches on the real banner for every inch on the paper banner. </span><span>

5 * 18 = 90 inches from the base of the rear triangle.</span><span>
7 * 18 = 125 inches for the height of the rear triangle. </span><span>
</span><span>The area of the paper triangle will be 5 * 7 / 2 = 35/2 square inches.</span><span>
The area of the rear triangle will be 90 * 125 / 2 = 5625 square inches. </span><span>

regarding feet: 

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the area of the real banner will be 5625 / 12^1 = 5625 / 144 = 39.0625 square feet.</span><span>
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3 0
3 years ago
An expression is shown below. Which expression is equivalent to the expression shown?
Vera_Pavlovna [14]

Note: In option A, it should be "+" instead of "(".

Given:

The expression is

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

To find:

The equivalent expression.

Solution:

We have,

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

Using distributive property, we get

=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)

=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y

On combining like terms, we get

=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)

=-2x^2+5y^2+xy+3x+9y

The expression -2x^2+5y^2+xy+3x+9y is equivalent to the given expression.

Therefore, the correct option is A.

6 0
3 years ago
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Arte-miy333 [17]
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3 years ago
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Dafna1 [17]

Answer: $47.60

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$2.08 x 20 = $41.60

Now, just add the $6.00 car wash to the total amount of gas which is $41.60.

$41.60 + $6.00 = $47.60

So, the total amount of his purchase was $47.60

7 0
3 years ago
¿give me the answer please?
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Answer:

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(5 x 8) / 2 x 3

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