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4 years ago

Carlos has 7 times as many red toy cars as blue toy cars. He has 56 total cars. How many more red cars does he have?

Mathematics

1 answer:

antiseptic1488 [7]4 years ago

6 0

let x = blue cars

so 7x = red cars

x +7x = 56

8x = 56

x = 56/8 =7 blue cars

7*7 =49 red cars

49-7 =42 more red cars

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How much does an ice cream cost with 11 ounces of toppings?

oksano4ka [1.4K]

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3 years ago

Find the area bounded by the graphs of the indicated equations over the given interval.

NeX [460]

Answer:

Step-by-step explanation:

$y = 0$

is basically the horizontal axis.

First, find the integral of x^2-25.

Remember that

integral of a constant is that constant times x.

Also that

to take the integral of a power function, add 1 to the degree and divide by that same degree.

$y = {x}^{2} - 25$

We then get

$\frac{ {x}^{3} }{3} - 25x$

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8 0

2 years ago

Please Help Me Thank u so much

BartSMP [9]

The location of the vertex tells you the horizontal and vertical shift. (The parent function f(x) = x² has its vertex at the origin, (0, 0). The vertical distance of the point 1 unit left or right of the vertex in relation to the vertex tells you the vertical scale factor (stretch).

g(x) = f(x +3) -3
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6 0

3 years ago

26. A book costs sh. (x - 300) and a pen costs sh (x + 100). If Ndagire pad sh. 3300 for 3 books and 2 pens, how much did she pa

saul85 [17]

Answer:

500 and 900

Step-by-step explanation:

3(x - 300) + 2(x + 100) = 3300 ← distribute parenthesis

3x - 900 + 2x + 200 = 3300

5x - 700 = 3300 ( add 700 to both sides )

5x = 4000 ( divide both sides by 5 )

x = 800

Then

cost of book = x - 300 = 800 - 300 = 500

cost of pen = x + 100 = 800 + 100 = 900

7 0

2 years ago

Justin worked 2 2/3 hours on thursday and 6 3/4 hours on friday. how many hours combined

yaroslaw [1]

Answer:

9 5/12

Step-by-step explanation:

2 2/3 + 6 3/4

find a common denomenator. For 3 and 4, it would be 12.

2 8/12 + 6 9/12

add

8 17/12

12 goes into 17 one time, with 5 left over

9 5/12

7 0

3 years ago