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lina2011 [118]
3 years ago
7

Help with math homework

Mathematics
1 answer:
igomit [66]3 years ago
8 0
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A youth group sells cookles for $8 a boxIf they spent 1000 buying the cookies, which equation below shows the profit () made by
Sonbull [250]

Answer:

D)        P = 8b - 1000

Step-by-step explanation:

Think about it,

First off

    If they spent 1000 from just buying the cookies. When you buy something you lose money. So that's -1000.

Secondly,

     If they charged $8 per box that would cost an additional eight dollars each time a cutomer perchased a box. Another way to show addition is multiplication.

Ex if someone bought 7 box and 8 dollars each it could be shown as either:

1. 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7

2. 8 + 8 + 8 + 8 + 8 + 8 + 8

3.  7 x 8  or 8 x7                                                                                                                      

So 8b - 1000 would make the most sense.

5 0
3 years ago
What is the order from least to greatest of the following numbers? 0.3, 2/5, 0.85, & 3/4 plss help
Irina-Kira [14]

Answer:

.3,2/5,3/4,.85

Step-by-step explanation:

Divide the fractions to get decimals and then put them in from least to greatest.

5 0
3 years ago
The diameter of Jen’s bicycle tire is 30cm. About how many revolutions will her tire make in a 20,000 cm journey?( Use pi =3.14
Verdich [7]

Answer:

213

Step-by-step explanation:

The circumference of the wheel is given by

C=2πr=πd

Where d is diameter, r is radius and c is circumference

The number of revolutions N multiplied by circumference should yield the total distance

N*πd= Distance

Given distance of 20, 000 cm and diameter of 30 cm

30πN=20000

Making N the subject of formula

N=20000/(30π)=212.20659078919378102517835116335248271261

Rounded off, about 213 revolutions are required

3 0
3 years ago
At Black Horse Junior School there were altogether 394 teachers and children. The teachers and the boys numbered 189, and the gi
Simora [160]
X - teachers
y - boys
z - girls

x+y+z=394\\ x+y=189\\ x+z=217\\\\ x+y+z=394\\ 
y=189-x\\
z=217-x\\\\
x+189-x+217-x=394\\
-x=-12\\
x=12\\\\
y=189-12\\
y=177\\\\
z=217-12\\
z=205

5 0
3 years ago
Find the area of the figure.
lisov135 [29]

Answer:

26 inches

Step-by-step explanation:

You need to add 3+5+7+7+4= 26 because you need to find the area of the figure which the inches are area to add and get how many inches in the figure. Sorry if you don't get it but the answer is 26 inches.

7 0
3 years ago
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