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lozanna [386]
3 years ago
13

Can someone please help

Mathematics
1 answer:
Nookie1986 [14]3 years ago
8 0

Answer:

i think its B

Step-by-step explanation:

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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
What would x be in px + 3 = k
yulyashka [42]

Answer:

Step-by-step explanation:

k=3

6 0
3 years ago
I need answers to these questions
GalinKa [24]

Answer is in the attached file...

8 0
3 years ago
Cody was 165\,\text{cm}165cm165, space, c, m tall on the first day of school this year, which was 10\%10%10, percent taller than
earnstyle [38]
Assume that Cody was x cm tall on his first day at school last year.
Assume that Cody is y cm tall on his first day at school this year.
This year, Cody became 10% taller.
10% is equivalent to 0.1

This can be translated into the following:
y = x + 0.1x 
We are given that y = 165 cm.
Substitute in the equation to get x as follows:
165 = x + 0.1x
165 = 1.1x
x = 150 cm

Based on the above calculations, Cody was 150 cm tall on his first day at school last year.

4 0
3 years ago
Read 2 more answers
Braincells = lost can someone fill in the blank
Sergio [31]

Answer:

I believe it’d be 5

Step-by-step explanation:

AH || BC

AH || FG

AH || DE

AB || HG

CD || FE

8 0
3 years ago
Read 2 more answers
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