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tankabanditka [31]
3 years ago
13

How many tens is in 3980

Mathematics
1 answer:
Katarina [22]3 years ago
7 0
398 because 3980/10=398
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A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the sma
RSB [31]

Answer:

A.

Step-by-step explanation:

<em>NOTE: The "larger number" will be referred to as y, and the "smaller number" will be referred to as x.</em>

"A number, y, is equal to twice the sum of a smaller number and 3."

This tells us that we must add our smaller number (x) to 3 within parantheses and then multiply the entire term (x+3) by 2.

y=2(x+3)

"The larger number is also equal to 5 more than 3 times the smaller number."

This tells us that we must multiply 3 against our smaller number (x) and add 5 to it.

y=3x+5

Now, to find your answer, we can put the equations in the same form as the answer choices so as to find an equivalent equation. Lets start with the first equation.

This form calls for us to have our x term first, then our y term, then our constant.

y=2(x+3)\\y=2x+6\\-2x+y=6

Now that we've gotten the equation in that form, we can see that our answer choices hold that our leading co-efficient must be positive, which we can adjust for by dividing both sides by -1.

-2x+y=6\\2x-y=-6

This makes the only possible answer choices (A) and (C).

Now, lets do our second equation. The recipe calls for the same form, again with a positive leading coefficient.

y=3x+5\\-3x+y=5\\3x-y=-5

This is only represented by choices (A) and (B).

Therefore, answer choice (A) is the only one which represents both equations.

7 0
3 years ago
shayla has 6 1/2 pounds of potato salad she needs to away into containers. each container only hodls 1 5/8 pounds. how many cont
sergiy2304 [10]

Answer:

She will need 4 containers

Step-by-step explanation:

First turn the fractions into decimals, 6 1/2 turns into 6.5, and 1 5/8 turns into 1.625, then divide.

6.5 divided by 1.625 equals 4

6 0
3 years ago
Which is better to buy a 12.5 oz bag of Doritos for $3.79 or a 3 oz bag for $1.00. Write each rate
ioda

$3.79 /12.5 = .3032

1/3 = .333

The 12.5 oz bag is cheaper

7 0
3 years ago
What is 1.81818181 rounded to the nerest houndred
Anuta_ua [19.1K]
1.81818181 rounded to the nearest hundred is 1.82
5 0
3 years ago
Read 2 more answers
Describe the graph of the equation x = 7. Is the equation a function?
DerKrebs [107]

Answer:

no it is not, A

Step-by-step explanation:

functions are things which u can draw vertical lines through and it never intersects(one x value leads to exactly one y value) at more than one point so A because x=7 is infinite y values for one x value.

3 0
3 years ago
Read 2 more answers
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