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Nadya [2.5K]
3 years ago
14

Each book in a store costs $8, and each pen costs $4. If you want to spend exactly $32, write the equation, in standard form, th

at represents modeling this situation. Let B represent the number of books you buy, and P represent the number of pens you buy.
Mathematics
1 answer:
Lena [83]3 years ago
5 0

Answer:

Step-by-step explanation:

Let B represent the number of books that you buy, and let P represent the number of pens that you buy.

If each book in a store costs $8 and each pen costs $4, it means that the cost of B books and P pens would be expressed as

8B + 4P

If you want to spend exactly $32, then the equation, in standard form, that represents modeling this situation is

8B + 4P = 32

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How do I solve equation 24=2a + 6
algol [13]

Answer:

9

Step-by-step explanation:

24 - 6 = 18 divided by 2 is 9 so a must be 9

8 0
3 years ago
Express 3/4 in sixty- fourths
Marrrta [24]
If you want 3/4 in 64's, multiply the numerator (3) by 16, as 4 x 16 = 64. 

<span>3 x 16 </span>
<span>--------- </span>
<span>4 x 16 </span>

<span>= 48/64</span>
4 0
3 years ago
elaine's mother is now 38 years old. seven years from now she will be five times as old as elaine will be then. write and solve
vfiekz [6]
In seven years her mother will be 38 +7 = 45 years old.

She will be 5 times as old, so divide 45 by 5: 45/5 = 9. Elaine will be 9 years old then, so she is 9-7 = 2 years old now.
5 0
3 years ago
Gulf gully and jump rope road are a pretty far distance.If the scale for the map is 0.5 inches=2.3 miles,what is the actual dist
Nezavi [6.7K]

Answer:

12 cm = 21.62 miles

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Step-by-step explanation:

To find the distance, set up a proportion. A proportion is two equal ratios set equal to each other. We form the ratios by using corresponding values. We write a ratio of \frac{map}{real world} and simplify.

We know \frac{map}{real world}=\frac{0.5in}{2.3 miles}. We know the distance on the map is 12 cm and 6 cm whish converts to 4.7 inches and 2.4 inches. We can write \frac{4.7in}{xmiles} and  \frac{2.4in}{xmiles}

We set them equal.

\frac{0.5}{2.3}=\frac{4.7}{x}

and

\frac{0.5}{2.3}=\frac{2.4}{x}

To solve each proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

2.3(4.7)=0.5(x)\\10.81=0.5x\\\frac{10.81}{0.5}=\frac{0.5x}{0.5} \\21.62 miles=x

and

2.3(2.4)=0.5(x)\\5.52=0.5x\\\frac{5.52}{0.5}=\frac{0.5x}{0.5} \\11.04 miles=x

8 0
3 years ago
Solve the system of equations using the addition method.
stepladder [879]

Answer:

A) 5x - 2y = 12

B) 3x + 2y = 36  Adding both equations eliminates "y"

8x = 48

x = 6   Putting x=6 into equation B we get

3*6 + 2y = 36

2y = 18

y = 9

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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