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aleksley [76]
4 years ago
15

Ahmed is taking orders for lunch. A slice of pizza cost $2.9 and a chicken sandwich costs $3.9. He collects $25.3 for the group

of 7 people.
Let x=number of pizza orders.Let y=number of chicken orders
Mathematics
1 answer:
Damm [24]4 years ago
4 0
X+Y=7
2.9X+3.9Y=25.3
Get X by itself: X=7-Y
Substitute for X: 2.9(7-Y)+3.9Y=25.3
Time it out: 19.5-2.9Y+3.9Y=25.3
Add the Ys: 19.5+Y=25.3
Subtract from both sides: Y=5
So, X is equal to two orders, and Y is five.
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Given the ratio 29 : 30, we can describe this ratio with the following situation.

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Part C:

Given the ratio 52 : 12, we can describe this ratio with the following situation.

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4 0
3 years ago
Jason played golf at a rate of 6 holes in 24 minutes. How much longer would it take him to play 54 holes than 41 holes?
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6 holes in 24 mins.
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5 0
4 years ago
Find the measures of the numbered angles in each figure
inessss [21]
1 is 90o
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6 0
3 years ago
Which products result in a difference of squares? Check all that apply. (5z + 3)(–5z – 3) (w – 2.5)(w + 2.5) (8g + 1)(8g + 1) (–
Helen [10]

Answer:

Option 2  (w-2.5)(w+2.5)=w^2-2.5^2\\ and option 4 (-4v-9)(-4v+9)=-(4v+9)(-)(4v-9)=4v^2-9^2

Explanation:

In option 1 (5z+3)(-5z-3)=-(5z+3)(5z+3)=-(5z+3)^2  which is not the difference of squares

In option 2 (w-2.5)(w+2.5)=w^2-2.5^2\\ using the formula

(a+b)(a-b)=a^2-b^2\\Here \\a=w,b=2.5

Clearly, the difference of squares

In option 3(8g+1)(8g+1)=(8g+1)^2 not the difference of squares

In option 4(-4v-9)(-4v+9)=-(4v+9)(-)(4v-9)=4v^2-9^2

Clearly the difference of squares

In option 5 (6y+7)(7y-6)=42y^2+13y-42 not the difference of squares

In option 6 (p-5)(p-5)=(p-5)^2 not the difference of squares

4 0
4 years ago
Read 2 more answers
I need helppppp please
barxatty [35]
It’s c I know the answer because I took the test
7 0
3 years ago
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