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Korvikt [17]
2 years ago
6

Tim has some marbles.

Mathematics
2 answers:
9966 [12]2 years ago
8 0
2t=s
J=15
T+s+j= 63
63-15=48
T+s=48
T = 16
S= 32

Tim has 16 marbles

snow_tiger [21]2 years ago
3 0

Answer:

Let x = the number of marbles Tim has

Let 2x = the number of marbles Sue has

x + 2x + 15 = 63

3x = 48

x = 16 marbles

Step-by-step explanation:

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3 years ago
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If your car can drive 433 miles on a full tank of gas, find the miles per gallon if your gas tank holds 17.2 gallons? How much d
just olya [345]

Answer:

-25.17 miles per gallon.

-It costs $49.02 to fill your tank.

Step-by-step explanation:

-To find the miles per gallon, you can use a rule of three:

17.2 gallons →  433 miles

    1 gallon   →        x

x=(1*433)/17.2= 25.17

If your gas tank holds 17.2 gallons, you car can drive 25.17 miles per gallon.

-To find the cost to fill your tank, you have to multiply the price per gallon for the amount of gallons that the tank can hold:

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6 0
3 years ago
What is the answer to m diveded by 8-7=12
lesya [120]
<span>We simplify the equation to the form, which is simple to understand
<span>m/8-7=12

</span></span><span>Simplifying:
<span> + 0.125m-7=12

</span></span><span>We move all terms containing m to the left and all other terms to the right.
<span> + 0.125m=+12+7

We simplify left and right side of the equation.
<span> + 0.125m=+19

We divide both sides of the equation by 0.125 to get m.
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Hope this helps :)♥

</span></span></span></span>
7 0
3 years ago
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Can someone help me i keep getting different answer!!
spayn [35]

Answer:

The second option: 3 (6 - 5n)/20n

Step-by-step explanation:

Make sure all fractions have a common denominator:

Step 1. Find a common multiple between all three denominators

5, 4, and 10 all have a common multiple of 20. Proof: 5 × 4 = 20, 4 × 5 = 20, and 10 × 2 = 20

Step 2. Multiply the denominators to get to 20. Whatever you do to the bottom (denominator) must be done to the top (numerator).

1/5n × 4/4 = 4/20n

3/4 × 5n/5n = 15n/20n

7/10n × 2/2 = 14/20n

Your fractions now all have a common denominator of 20n.

Rewrite the equation using the new fractions:

4/20n - 15n/20n + 14/20n

Only focus on adding/subtracting the numerators; the denominators will stay the same: 20n.

(4 - 15n + 14)/20n

Combine like terms:

(18 - 15n)/20n

Factor out any numbers possible:

3(6 - 5n)/20n

Note* 3 go into both 18 and 15, which allows us to factor 3 out. 18 ÷ 3 = 6 and 15 ÷ 3 = 5, giving us our new numbers inside the parentheses.

6 0
3 years ago
How many leaves on a tree diagram are needed to represent all possible combinations tossing a coin and rolling a dice
dolphi86 [110]
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