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Elza [17]
3 years ago
6

Givin brainliest please help

Mathematics
1 answer:
Sauron [17]3 years ago
5 0
A
I think is right.....
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Which number from the set {0, 2, 4, 6} makes the equation true?
Damm [24]

7x - 3 + 4x = 19

7x + 4x - 3 = 19

11x - 3 = 19            | + 3

11x - 3 + 3 = 19 + 3

11x = 22            | : 11

11x : 11 = 22 : 11

x = 2

Answer B.

4 0
2 years ago
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two years ago jenny was four times as old as helen. six years from now jenny will be twice as old as helen. how old are the girl
Elina [12.6K]
What  type of teacher would give a frustrating problem like this?!?
5 0
3 years ago
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Jerrica is selling calendars to raise money for a community group she belongs to. A basic calendar sells for $10 and a deluxe ca
Sidana [21]

The correct answer is option B.

Let the basic calendars be = x

Let the deluxe calendars be = y

Total calendars are = 72 , so equation becomes:

x+y=72  .............(1)

Cost of 1 basic calendar = $10

So, cost of all basic calendars will be = 10x

Cost if 1 deluxe calendar = $15

So, cost of all deluxe calendars = 15y

As given, the number of deluxe calendars must be greater than or equal to 3 times the number of basic calendars, the equation becomes

y=3x ...............(2)

Putting the value of y from (2) in (1)

x+y=72

x+3x=72

4x=72

x=18

As, y=3x

y=3\times18=54

So we have 18 basic calendars and 54 deluxe calendars.

Cost of 18 basic calendars will be= 18\times10=180

Cost of 54 deluxe calendars will be = 54\times15=810

So total amount is = $990

Hence, the maximum revenue is $990.


4 0
3 years ago
Read 2 more answers
Can somebody help me with this ?? :)
Diano4ka-milaya [45]

Answer:

B.

Step-by-step explanation:

B.

This answer does not prove anything.

4 0
2 years ago
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John read that niacin can help your digestive system and skin. He eats a lot of peanut butter and discovered that each serving p
Delvig [45]

One serving provides 3.2 milligrams of niacin to John.

Given: One serving provides 20% of the recommended daily allowance of niacin.

Recommended daily allowance is 16 milligrams

What is the percentage?

The percentage is the way of depicting a value concerning the one-hundredth part of any quantity. The symbol of percentage is %.

For example, 20% means 20 in the parts of 100. 20% means 20 / 100 or 0.20.

Now let’s solve the given problem.

Recommended daily allowance of niacin = 16 milligrams

One serving provides 20% of the daily allowance.

So, the number of milligrams provided by one serving is 20% of the recommended daily allowance of niacin.

= 20% of 16 milligrams

= 20 / 100 * 16 milligrams

= 0.20 * 16 milligrams

= 3.2 milligrams.

Therefore, the milligrams of niacin provided is 3.2 milligrams.

Hence, one serving provides 3.2 milligrams of niacin to John.

Know more about "percentage" here: brainly.com/question/13450942

#SPJ9

8 0
1 year ago
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