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3 years ago

Simplify. -2.(4) - 3. (-5)

Mathematics

1 answer:

allsm [11]3 years ago

3 0

Answer:

7=7

Step-by-step explanation:

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I need help with 4 and 5 what are the answers?

ira [324]

Answer:

4. U = 54

5. C=80

Step-by-step explanation:

Basically you move the denominator to the other side and multiply. please take note of the signs(positve, negative)

7 0

3 years ago

(a+200)÷400=2 тендеу

Oksana_A [137]

Answer: a=600

Step-by-step explanation:

(a+200)/400=2

a+200=2×400=800 so

a+200=800

a=600 because 800-200=600

Hope this helps. Stay healthy and safe and have a blessed and wonderful day and I hope you had a good Easter!

- Cutiepatutie

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3 years ago

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anastassius [24]

63 I think, you would subtract

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2 years ago

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You have total coins for a total of $. . You only have quarters and dimes. Let represent the number of quarters and represent th

Sonja [21]

Answer:

$Quarters = 41$

$Dimes = 18$

Step-by-step explanation:

Given

$Coins = 59$

$Worth = \$12.05$

$d = dimes$

$q = quarters$

Required

The number of each coin

The total coins can be represented as:

$d + q = 59$

$1\ quarter = \$0.25 \\ 1\ dime = \$0.10$

So, the worth of the coin is:

$0.25q + 0.10d = 12.05$

The equations to solve are:

$0.25q + 0.10d = 12.05$

$d + q = 59$

Make d the subject in: $d + q = 59$

$d =59 - q$

Substitute $d =59 - q$ in $0.25q + 0.10d = 12.05$

$0.25q + 0.10(59 - q) = 12.05$

$0.25q + 5.9 - 0.10q = 12.05$

Collect like terms

$0.25q - 0.10q = 12.05 - 5.9$

$0.15q = 6.15$

Solve for q

$q=\frac{6.15}{0.15}$

$q=41$

Substitute $q=41$ in $d =59 - q$

$d = 59 - 41$

$d = 18$

So:

$Quarters = 41$

$Dimes = 18$

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3 years ago

T diagram between two cars and the models

Temka [501]

Make a t diagram between two cars

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3 years ago