Please answer 4 ( will give brainlst )

Mathematics

1 answer:

EleoNora [17]3 years ago

7 0

Answer:

ITS C

Step-by-step explanation

DONT KNOW HOW TO EXPLAIN

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There wear 10000 bugs in a mountain in the train there are 15 bug how many bugs in all

mojhsa [17]

There are 10000 bugs and you add 15 bugs to it.
10,000+15= 10,015

The total is 10,015 bugs

There were already 10,000 bugs and 15 bugs joined them.
Which makes it an addition statement

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3 years ago

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Y = -3x + 4<br> y = 3x - 21

Sladkaya [172]

Answer:

x=4 1/6 y=-3 1/2

Step-by-step explanation:

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2 years ago

Need Help Badly!!!!!! The dot plot below shows the number of books 26 students read in a month: Dot plot labeled Number of Books

algol13

The dot plot below shows the number of books 26 students read in a month:

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3 years ago

For the following pairs of equations explain why the equations are NOT equivalent.

Serga [27]

If you were to make both x's equivalent, you'd have to multiply the first equation by 2 to get rid of the coefficient, 1/2. However, you'd have to multiply 2 onto -8 as well, therefore the equation would turn into x - 16 = 18. That is not equivalent to x - 8 = 18.

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2 years ago

If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?

Fittoniya [83]

Step 1: Find the value of one variable in terms of the other.

$a+3b=7\\a=7-3b$

Step 2: Substitute the value you just found for this variable in the other equation.

$3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}$

Step 3: Use your new value for the second variable to find the first.

$a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}$

Now that we know the values for a and b we can find the value of 4a+b.

$4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}$

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3 years ago