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svetlana [45]
3 years ago
12

For homework, Brooke has 15 math problems, 5 social studies problems, and 9 science problems. Use mental math to determine how m

any problems she has for homework. Tell which property you used.Answer Property
Mathematics
1 answer:
koban [17]3 years ago
8 0

Answer:

29 homework problems

Addition Property was used

Step-by-step explanation:

15+5=20+9=29

Addition

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Create an item with a selling price over $100 a discount of 25% and tax is 9%
Lana71 [14]

First, convert the 25% to a real mathematical number. For percents, this is always done by dividing the 25% by 100%, or 25% / 100% = 0.250.

Second, find out what 25% of $100 is. This is the amount of the sale discount. This is always found by mulitplying 0.250 by the item's cost $100, like this:

0.250 x $100 = $25.00.

So for this sale, you'll save $25.00 on this item.

This means, the cost of the item to you is

$100 - $25.00 = $75.00.

Alternatively, you can think about it this way. The item is 25% off. This means you'll pay 75.000% of the total cost (100% - 25% = 75.000%).

Now what's 75.000% of the total cost?

0.750 x $100 = $75.00.

Just like the result above, the sale price on the item is $75.00.

Hope this helps you on your assignment! :)

5 0
3 years ago
Write an equation that represents the line​
FinnZ [79.3K]

Answer:

5/6x + 3 = y

Step-by-step explanation:

The slope intercept form is:

mx + b = y

The slope is 5/6.

The y intercept is 3.

6 0
2 years ago
If the 12-pack of water bottles at Kroger costs $4.60 then How much would one of those bottles of water cost?
xeze [42]

Answer:

Step-by-step explanation:

If the 12-pack of water bottles at Kroger costs $4.60 then How much would one of those bottles of water cost?

1. Divide the cost by the number of bottles.

4.60 ÷ 12 = $0.38/bottle

8 0
3 years ago
Hailey, Megan, and Bailey have saved $458 for a summer trip to the beach. Hailey has saved $167. Megan has saved at least $152,
Jet001 [13]
Let H = Hailey, M = Megan, B = Bailey

H + M + B = 458
167 + M + B = 458
M + B = 291

152 ≤ M ≤ 164
If M = 152, B = 139
If M = 164, B = 127

Thus,
$127 ≤ B ≤ 139
4 0
3 years ago
32 - 5x is greater than or equal to 7 - 5(x - 5)
Damm [24]

Answer:

True 32≥32

Step-by-step explanation:

32-5x≥7-5(x-5)

32-5x≥7-5x+25

32-5x≥32-5x

+5x +5x

32≥32

6 0
3 years ago
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