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lyudmila [28]
4 years ago
14

A machine can seal 179 envelopes in 1 minutes. If thete are 1,140 minutes in a 24 hour day, how many envelopes can the machine s

eal in 2 day
Mathematics
2 answers:
sp2606 [1]4 years ago
7 0
Multiply 1140 by 2 to get a worth of 2 days, then multiply that (2280) by 179 to get 408,120 envelopes sealed in 2 days
Vladimir [108]4 years ago
4 0
408,120 envelopes sealed in 2 days
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Two positive integers have a sum of 14 and a product of 24
MissTica
See picture for set up.

6 0
3 years ago
If the mean of A and B is 20, the mean of B and C is 24 and the mean of A,B and C is 18.What is the mean of A and C?
Zielflug [23.3K]

Answer:

the mean of A and C is 10

Step-by-step explanation:

Given;

mean of A and B = 20

mean of B and C = 24

mean of A, B and C = 18

\frac{A + B}{2} = 20\\\\A+ B = 40 ---- (1)\\\\\frac{B + C}{2} = 24\\\\B+ C = 48----(2)\\\\\frac{A+ B+ C}{3} = 18\\\\A+ B+ C= 54---(3)\\\\From (1); \ A = 40 - B\\\\From(2); \ C = 48 - B\\\\\Substitute \ the \ values \ of \ A \ and \ C \ into \ (3)\\\\(40-B) + B + (48-B) = 54\\\\simplify;\\\\(40 + 48) + (B-B-B)= 54\\\\88 -B = 54\\\\-B = 54-88\\\\-B = -34\\\\B = 34

Recall; A = 40 - B

           A = 40 - 34

           A = 6

Also, C = 48 - B

        C = 48 - 34

       C = 14

Therefore, the mean of A and C is calculated as;

= \frac{A + C}{2} \\\\= \frac{6 + 14}{2} \\\\= 10

5 0
3 years ago
There are 42 more red marbles in a jar than there are white marbles. If there are 238 marbles in the jar, how many of them are r
Andrej [43]

Answer:

Red: 161 White: 77

Step-by-step explanation:

Given there are 238 marbles in a jar, and there are 42 more red marbles than white marbles, we need to divide the number of marbles by two, as there are, presumably, two colors.

238 / 2 = 119

After doing this, we subtract 42 from one of the two 119s, and we add 42 to the other.

119 - 42 = 77

119 + 42 = 161

The value with 42 added is the red marble count, and the value with 42 subtracted is the white marble count.

8 0
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Solve the system of equations by the substitution method.<br> y=5x+6<br> y=9x+7
alukav5142 [94]

Answer:

When finding the value of x let y be 0 and when finding value of y let x be 0 and get your answers.

8 0
3 years ago
Question lastttttttt..............
leonid [27]

Answer:

Answer is c

Step-by-step explanation:

Solve for x

To solve for x, set the left hand side equal to 0 and solve for x with the quad equation

5 0
3 years ago
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