{y=-7
{4x+y=9 Substitute y.
4x+(-7)=9
4x-7=9 /+7
4x=16 /:4
x=4
Solution; (4; -7)
The space contained by Styrofoam peanuts is 744 cubic inches.
In three-dimensional space, a prism is a polyhedron where two ends are similar.
Given:
A glass box shaped like a rectangular prism has a width of 7 inches, length 9 inches, and height 12 inches.
It's being shipped in a larger box with width 10 inches, length 10 inches, and height 15 inches.
The space between the glass box and the shipping box will be filled with styrofoam peanuts.
The space contained by Styrofoam peanuts,
= The volume of the shipping box - the volume of the glass box.
=(10 x 10 x 15) - 7 x 9 x 12
= 744 cubic inches.
Therefore, the contained space is 744 cubic inches.
To learn more about the prism;
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Answer: 3t^2-9t+2
Step-by-step explanation: im assuming you meant +2. First you need to distribute 3t^2-15t+6t+2 and then you need to combine like terms.
Answer: 3%
Step-by-step explanation: when we multiply the number 470 by .03 and get 14.1 which is the same as 14.10 and this is the answer.
Answer:
=22.47
Step-by-step explanation:
We are buying 2 shirts
Before discount 2*15 = 30
We get 30% off. That means we pay 70 percent of the price
$30 * 70% =
30 *.7
21
The cost of the shirts before tax is 21 dollars
Tax is the cost of the shirts after discount times the tax rate
tax = 21 * 7%
tax = 21 *.07
tax =1.47
We add the tax to the cost of the shirts
Final cost = discount price + tax
=21+1.47
=22.47
The total cost of 2 shirts on sale, including the 7% sales tax, is $22.47.
The subject of this question is Mathematics, specifically a problem of applying percentage for discounts and tax. To calculate the sale price of a single shirt, you need to take 30% off the original price. Calculate 30% of $15, which is $4.50. Subtract this from the original price, which leaves you with $10.50 as the sale price of one shirt. However, you want to buy 2 shirts, so the cost before tax is $21. Next, you need to calculate the sales tax. Multiply $21 by 7%, which is $1.47. Add the $1.47 sales tax to the $21 cost before tax, and you get the final total cost: $22.47. The provided reference is not relevant to this question.
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