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bezimeni [28]
3 years ago
13

What is the solution to the equation 3(2x+5) = 3х+4x?

Mathematics
2 answers:
charle [14.2K]3 years ago
7 0

3(2x+5) = 3x+4x\\6x+15=7x\\x=15

elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

x = 15

Step-by-step explanation:

Given

3(2x + 5) = 3x + 4x ← collect like terms

3(2x + 5) = 7x ← distribute parenthesis on left side by 3

6x + 15 = 7x ( subtract 6x from both sides )

15 = x ⇒ x = 15

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A bakery sells vanilla cupcakes and chocolate cupcakes. It sold 276 vanilla cupcakes in a day. 8% of the cupcakes sold that day
kkurt [141]

Answer:

hello!!!

300 cupcakes

please read the explanation.. it always helps... trust me...

Step-by-step explanation:

alrighty here it goes...

okay.. so we start by reading the problem (duh) but also underlining the important numbers that we need. yes, it really is that simple, trust me....

okay so the percentage of chocoalte cupcakes was 8% and the amount of vanilla cupcakes was 276.

we start by taking 100% - 8% = 92% so the amount of vanilla cupcakes sold was 276 which is also 92% of the total amount of cupcakes.

so now we need to find out 92% of what number gets us 276.

the percentage formula (in this problem) should be as follows:

92/100 x (total amount of cupcakes) = 276

to solve for total amount of cupcakes you do 276 x 100 then you divide by 92 to get your answer (which is 300)

i hope this helps!!!

4 0
2 years ago
A school needs 75 light bulbs. Bulbs
igor_vitrenko [27]

The answer is about 9 1/2 because of this you should have 10 lightbulbs 10 as your answer

5 0
3 years ago
Please help me idk this
Masteriza [31]

Answer:

+5

Step-by-step explanation:

If you think about it this way, sea level is like the middle ground, or 0

If you are at 0, and you swim 10 feet BELOW 0, you are now at -10


Your dolphin leaped 5 feet higher than 0 feet, so what is 0 + 5?

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8 0
3 years ago
Combine the like terms:
Anuta_ua [19.1K]

Answer:

1 apple, 10 fingers, 6 flowers

Step-by-step explanation:

Apples are like terms, so 2-1=1 apple.

Fingers are like terms, so 12-2=10 fingers.

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8 0
4 years ago
Meiko is hanging a picture collage on her wall. The dimensions of the collage are shown in the diagram. She plans to cover
alexira [117]

Answer: \frac{A_{collage}}{15.75\ in^2}

Step-by-step explanation:

Since you did not attach the diagram and I don't know the dimensions of the collage, I will give you a general explanation of the procedure you need to use in order to solve the exercise:

1. You need to use the formula for calculate the area of a rectangle:

A=lw

Where "l" is the length and "w" is the width.

2. Using the formula, you must calculate the area of an small picture.

You know that its length is 4.5 inches and its width is 3.5 inches. Therefore, its area is:

A_{picture}=(4.5\ in)(3.5\ in)\\\\A_{picture}=15.75\ in^2

3. Calculate the area of the collage using the formula:

A_{collage}=(l_{collage})(w_{collage})

4. Finally, divide the area of the collage by the area of an small picture in order to find the number of small pictures that will fit within the collage:

\frac{A_{collage}}{15.75\ in^2}

5 0
3 years ago
Read 2 more answers
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