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cricket20 [7]
3 years ago
10

Susan wants to have business cards printed. One style will cost $25 plus 2 per card. Another style will cost $10 plus 5 cent per

card. For how many cards will the cost be the same for both style?
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
5 0
All they doing it counting by 5
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After reading The Lord of the Rings, Francesca signs up for archery lessons. At her first lesson, she sets up her target 5 feet
N76 [4]

Answer:

3 times

Step-by-step explanation:

5x=15

Divide both sides by 5

x=3

Hope this helps

6 0
3 years ago
Read 2 more answers
In the standard (x, y) coordinate plane which equation represents a line through the point (6, 1) and perpendicular to the line
Nata [24]

Answer:

d. -2/3x+5

Step-by-step explanation:

Because the line is perpendicular, the slope must be the inverse of the original slope. The inverse of 3/2 is -2/3. To find the b value, you plug (6,1) into the equation y=-2/3x+b

1=-2/3(6)+b

1=-4+b

5=b

The final equation is y=-2/3x+5

6 0
3 years ago
How many ml of 20 percent acid should be added to pure acid to make 70 ml of 30 percent acid?
Novay_Z [31]

Answer:

61.25%

Step-by-step explanation:

How many ml of 20 percent acid should be added to pure acid

to make 70 ml of 30 percent acid?

:

let x = amt of 20% mixture

then

(70-x) = amt of pure acid

:

0.20x + (70-x) =0 .30(70)

0.20x + 70 - x = 21

= 21 - 70

-0.8x =-49

x = 61.25%

x = +61.25 ml of 20% stuff

8 0
3 years ago
Sam and Jeremy have ages that are consecutive odd integers. The product of their ages is 783, which equation could be used to fi
stepladder [879]
(2x+1)=Jeremy´s age
(2x+3)=Sam´s age.
we suggest this equation:
(2x+1)(2x+3)=783
4x²+6x+2x+3=783
4x²+8x-780=0
x²+2x-195=0

We solve this quadratic equation:
x=[-2⁺₋√(4-4*1*(-195))]/2=(-2⁺₋28)/2

x₁=(-2-28)/2=-15 this solution is not valid.
x₂=(-2+28)/2=13

Jeremy´s age=2x+1=2*13+1=27
Sam´s age=2x+3=2*13+3=29



7 0
3 years ago
How long will it take a seal swimming ata speed of 8 miles per hour to travel 52 hours
Alexxandr [17]
It will take 52 hours they will go 416 miles
3 0
3 years ago
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