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3 years ago

Rocco bought a soft drink for three dollars and six candy bars, He spent a total of twenty one dollars. How

Mathematics

1 answer:

Sophie [7]3 years ago

3 0

Answer:

x=3

Step-by-step explanation:

The equation will be 3+6x=21 since we know that the soft drink costs 3 dollars and he bought 6 candy bars(6 times x or 6x). We also know that the total cost for this merchandise is 21 dollars. Now you solve the equation! First subtract 3 from both sides(since the inverse for addition is subtraction we SUBTRACT 3 from bothe sides). You are left with 6x=21-3 or 6x=18. Now you divide Each side by 6(because the inverse operation of multiplication is division). You have the answer! x=18/6 or x=3! Hope it helped!!

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A window washer has a 15-foot extension ladder. how far away from the building should the foot of the ladder be placed to reach

Alinara [238K]

This is the concept of application of geometry; the distance that the ladder should be placed will be given by Pythagorean theorem.
thus;
c^2=a^2+b^2
where, c=hypotenuse, a and b are the legs
hence;
15^2+12^2+b^2
b^2=15^2-12^2
b^2=225-144
b^2=81
getting the square root of both sides;
b=sqrt81
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2 years ago

What is the ratio of the number of cherry slices to the number of orange slices in the medium size bag of candy?

KiRa [710]

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7 0

3 years ago

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5y-14=2y-2 solve for y and show work plz

MrMuchimi

Answer:

y=4

Step-by-step explanation:

Let's solve your equation step-by-step.

5y−14=2y−2

Step 1: Subtract 2y from both sides.

5y−14−2y=2y−2−2y

3y−14=−2

Step 2: Add 14 to both sides.

3y−14+14=−2+14

3y=12

Step 3: Divide both sides by 3.

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2 years ago

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One spinner has three equally sized sectors numbered 1, 2, and 3. A second spinner has two equally sized sectors labeled Top (T)

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I hope this helped. And sorry if it is not the correct answer. But that is how I would of answered it

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Is there a faster way to find GCF of large numbers e.g 828 and 529.

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You can use prime factorization to find the GCF of a set of numbers. This often works better for large numbers, where generating lists of all factors can be time-consuming.
Here’s how to find the GCF of a set of numbers using prime factorization:
* List the prime factors of each number.
* Circle every common prime factor — that is, every prime factor that’s a factor of every number in the set.
* Multiply all the circled numbers. The result is the GCF.
For example, suppose you want to find the GCF of 28, 42, and 70. Step 1 says to list the prime factors of each number. Step 2 says to circle every prime factor that’s common to all three numbers (as shown in the following figure).
As you can see, the numbers 2 and 7 are common factors of all three numbers. Multiply these circled numbers together:
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