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kodGreya [7K]
3 years ago
13

ASAP WHATS THE ANSWER???

Mathematics
1 answer:
katrin [286]3 years ago
7 0

Answer:

algebraic expression as they used variables

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Jan bought 6 cookies and 4 doughnuts for 3.50. Tom bought 12 cookies and 5 doughnuts got 5.23. Write and solve a system of equat
iren2701 [21]
0.19 for one cookie and 0.59 for one doughnut

x for how much one cookie costs and y for how much one doughnut costs
6x+4y=3.5
12x+5y=5.23

solve by substitution: (elimination would work too)
4y=3.5-6x
y=0.875-1.5x
12x+5(0.875-1.5x)=5.23
12x+4.375x-7.5x=5.23
4.5x=0.855
x=0.19
now use x to solve for y:
6(0.19)+4y=3.5
1.14+4y=3.5
2.36=4y
y=0.59

Check the work: 6(0.19)+4(0.59)=3.5
4 0
3 years ago
The domain of the following relation has how many elements?
Ivahew [28]

Answer:

b. 1

Step-by-step explanation:

All first coordinates are 1/2.

Answer: b. 1

5 0
3 years ago
Simplifying radicals
nexus9112 [7]

Answer:

its easy just do 7 times 145 wich is

Step-by-step explanation:

1015

8 0
3 years ago
Please help me out!!!!
svetoff [14.1K]

Answer:

b= 70

Step-by-step explanation:

The sum of the opposite interior angles of a triangle is equal to exterior angle.

a+b = 140

We know that a = b since PQ = RQ  The angles opposite the equal sides in an isosceles triangle are equal

b+b = 140

2b =140

Divide by 2

2b/2 =140/2

b= 70


6 0
3 years ago
Divide 150 into 3 parts in the proportion of 4, 6 and 2 1/2 respectively<br><br>​
Feliz [49]

Answer:

Hope this helps!!

Step-by-step explanation:

4 = 48

6 = 72

2 \frac{1}{2} = 30

PLZZ MARK BRAINLIEST

5 0
2 years ago
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