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abruzzese [7]
3 years ago
13

Please help Me solve for x

Mathematics
1 answer:
Olegator [25]3 years ago
4 0

Answer:

-6

Step-by-step explanation:

-30/5 = 5x/5 -----> -30 divided by 5 is equal to -6

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HELP<br><br> Does this circle have a radius or diameter?
o-na [289]

Answer:

Radius

Step-by-step explanation:

The radius is a straight line from the center to the circumference of a circle

The diameter is a straight line, from circumference to circumference, that passes throught a citcle's center

3 0
3 years ago
Divide 320 into 8 equal groups
alexandr402 [8]

Answer:

320 divided by 8 is 40. 40 times 8 is 320, so it works backwards.

8 0
3 years ago
Set up a linear system and solve. A cash register contains $5 bills and $50 bills with a total value of $345. If there are 15 bi
victus00 [196]

Answer:

6 $50 bills and 9 $5 bills

Step-by-step explanation:

Let's let x = the number of $5 bills, and y = the number of $50 bills. With this, we can set up two equations:

5x + 50y = 345

x + y = 15

Because there is $345 total in the register, that means that 5 times the number of $5 bills plus 50 times the number of $50 bills would equal 345. And there are 15 bills total, so the numbers added is 15. Now, we can solve these equations through substitution:

x + y = 15

x = 15 - y

Now, plug in (15 - y) for x into the other equation, and solve for y:

5(15 - y) + 50y = 345

75 - 5 y + 50y = 345

75 + 45y = 345

45y = 270

y = 6

Since y is 6, that means we have 6 $50 bills. And there are 15 bills total, so there are 9 $5 bills. (15 - 6 = 9)

5 0
1 year ago
Elena has a washing machine with a 20 gallon capacity. She always uses a 20 gram measure of soap for every 10 gallons of water.
baherus [9]

Answer:

For \[20\] minutes Elena add water to correct the error.

Step-by-step explanation:

The capacity of the washing machine is \[20\] gallons.

She uses \[20\] gram soap for \[10\] gallon of water

Her son by mistake dissolved \[60\] grams of soap to \[10\] gallons of water.

\[60\]-gram soap is right for \[30\] gallons of water, thus \[20\] gallon of water must be added more.

She pore water \[2\] gallons per minute thus, \[20\] gallons of water will take\[10\]minutes.

Learn more about equations : brainly.com/question/20727602?referrer=searchResults

6 0
2 years ago
1. Jemima wants to make chocolate chip walnut brownles. Chocolate chips come in a 12oz bag that costs $3. Walnuts
fomenos

Answer:

4 bags of chocolate chips and 1 bag of walnuts.

Step-by-step explanation:

Find how many ounces are in 3 pounds:

16 oz = 1 lb

16 oz × 3 = 3 lbs

48 oz = 3 lbs

Variable x = number of chocolate chips

Variable y = number of walnuts

4x + 1y = 15

Keep in mind it must equal up to 48 oz and be $15 or under.

4 bags × 12 oz = 48 oz

1 bag × 4 oz = 4 oz

48 oz + 4 oz = 52 oz > 48 oz

4 bags × $3 = $12

1 bag × $2 = $2

$12 + $2 = $14 < $15

Both requirements have been met.

7 0
2 years ago
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