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2 years ago

10

Hitomi has a total of 30 red and blue bowling balls at her bowling alley. Each red ball weighs 8 lbs. Each blue ball weighs 9 lb

. If the total mass of the blue balls is 49 lb. heavier than the total mass of the red balls, how many red balls does she have?

1 answer:

sergejj [24]2 years ago

7 0

Answer:

5 balls

Step-by-step explanation:

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there are 20 guests at a party the host has 8 gallons of punch he estimates that each guess within 2 cups of punch if his estima

AlekseyPX

STEP 1:
convert gallons to cups & calculate total number of cups

1 gallon= 16 cups

= 8 gallons * 16 cups/gallon
= 128 cups total

STEP 2:
calculate total cups estimated for 20 guests

= 20 guests * 2 cups/guest
= 40 cups needed for guests

STEP 3:
subtract the difference between step 1 and step 2 to find leftover punch

= 128 cups - 40 cups
= 88 cups leftover

OR

GALLONS LEFTOVER
= 88 ÷ 16 cups/gallon= 5 1/2 gallons

ANSWER: There will be 88 cups or 5 1/2 gallons of punch leftover.

Hope this helps! :)

4 0

3 years ago

Can someone explain this to me.

almond37 [142]

Answer:

option D

$3*(\sqrt{x}+\sqrt{x-3})$

Step-by-step explanation:

Given in the question an expression,

$\frac{9}{\sqrt{x} -\sqrt{x-3}}$

Step 1

Divide and multiple by $\sqrt{x}+\sqrt{x-3}$ to remove radical sign from denominator.

$\frac{9}{\sqrt{x} -\sqrt{x-3}}*\frac{\sqrt{x} +\sqrt{x-3}}{\sqrt{x} +\sqrt{x-3}}$

Step 2

Apply a² - b² = (a+b)(a-b)

$\frac{9*\sqrt{x}+\sqrt{x-3}}{\sqrt{x^{2}}-\sqrt{(x-3)^{2}}}}$

Step 3

$\frac{9*\sqrt{x}+\sqrt{x-3}}{x-x+3}$

Step 4

$\frac{9*\sqrt{x}+\sqrt{x-3}}{3}$

Step 5

$3*(\sqrt{x}+\sqrt{x-3})$

7 0

3 years ago

Rewrite each expression without a negative exponent none of the above<br>x^-1

Sloan [31]

Answer:

x^-1

x^1

Step-by-step explanation:

Oooops ...can you please repeat ur Question

3 0

3 years ago

Read 2 more answers

Inductive reasoning or deductive reasoning:

Nat2105 [25]

Answer:

no

Step-by-step explanation:

Example:

9 is an odd number, but 9 can be divided by 3, so 9 is not a prime number.

49 is an odd number, but 49 can be divided by 7, so 49 is not a prime number.

5 0

3 years ago

You are wearing a pair of cargo pants with six pockets. You've put $10 in one of the pockets, but you cannot remember which one.

Over [174]

There are 6 pockets all together. You checked two of them and it wasn't
there. So you can forget about those 2, and now there are 4 pockets left.

The total number of ways for your next try is 4.
The number that will be successful is 1.

The probability of success on the next one is <em>1/4 = 25% .</em>

=======================================================

Another method of solution, somewhat more complex:

Total number of pockets = 6.
Amount of money missing = $10
First partial sum, i.e. sum of numbers
in the first part of the problem = 6 + 10 = 16.

Total number of pockets = 6
Current value of cargo pants on a fashion scale from 1 to 10 = -2.
Second partial sum = 6 - 2 = 4.

Probability = (second partial sum) / (first partial sum) = 4/16 = <em>25% </em>.

5 0

3 years ago