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antoniya [11.8K]

3 years ago

11

At camp last summer, the ratio of boys to girls was 5:4. If there was a total of 90 campers, how many girl campers are there? ex

plain

1 answer:

LekaFEV [45]3 years ago

4 0

Answer:

40 girls

Step-by-step explanation:

if you multiply 5 times 10, then you have to multiply the other side by 10 too. So 5 times 10 equals 50, and 4 times 10 equals 40.

40+50+=90.

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Please help on both questions. I would appreciate it.

ohaa [14]

Answer:

first one is 4.5 second one is 45

Step-by-step explanation:

8 0

3 years ago

Monica wants to measure the dimensions of her rectangular lawn. If the longer side of the lawn is (x + 3) feet and the diagonal

Nikolay [14]

Answer:

$\text{Hence, The shortest side of her Lawn is} \sqrt{2x+7}\text{ feet}$

Step-by-step explanation:

Given: Monica wants to measure the dimensions of her rectangular lawn.

If the longer side of the lawn is BC=(x + 3) feet.

If the diagonal length is AC=(x + 4) feet.

Let the shortest side of lawn is AB=y feet

The angle of rectangle is right angle.

Using diagonal, shortest and longer side to make a right angle triangle whose hypotenuse is length of diagonal.

Using Pythagoreous theorem,

$AB^2+BC^2=AC^2$

$y^2+(x+3)^2=(x+4)^2$

$y^2=(x+4)^2-(x+3)^2$

$y^2=x^2+16+8x-x^2-9-6x$

$y^2=2x+7$

$y=\pm \sqrt{2x+7}$

We will ignore the negative value because side of rectangle can't be negative.

$y=\sqrt{2x+7}\text{ feet}$

$\text{Hence, The shortest side of her Lawn is} \sqrt{2x+7}\text{ feet}$

4 0

3 years ago

Miller Park sits on one square city block 300ft on each side. The city wants to get an estimate of how much it would cost to put

harkovskaia [24]

300*square root of 2=424.264
424.264*25=10606.6.

6 0

4 years ago

Phil is a commercial fisherman. He keeps 5 salmon for every 8 cod he catches. If Phil keeps 15 salmon, how many cod will he keep

sweet-ann [11.9K]

15 / 5 = 3

3 * 8 = 24 cod

5 0

4 years ago

A rectangular prism has a length of 3 1/2 in., a width of 5 in., and a height of 1 1/2 in.

Shkiper50 [21]

V = LWH = (3 1/2 in.) * (5 in.) * (1 1/2 in.) =

= 3.5 in. * 5 in. * 1.5 in.

= 26.25 in.^3

= 26 1/4 in.^3

5 0

4 years ago

Read 2 more answers