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zzz [600]
2 years ago
14

Julie is a cashier. She can ring up 12 customers in 9 mintesutes. At the rate, how many minutes does it take for her to ring up

4 customers?
Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
6 0

Answer:

5.2

Step-by-step explanation:

ok so we need to find the unit rate( how many customers per minute) and thats 12 divided by 9 which is 1.3 minutes per customer so now we need to find what 1.3 minutes is x4 customers. This brings us to 5.2.

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A group of workers can plant 54 acres in 9 days. What is their rate in acres per day?​
telo118 [61]

Answer:

6 acres per day

Step-by-step explanation:

Take the total acres planted (54) and divide the number of days (9) to get the acres per day (6)

3 0
2 years ago
Use the graphs of f and g to solve Exercises 87, 88, and 89.
Nadya [2.5K]

Answers and explanations:

87. The domain of added functions includes the restrictions of both. So the range of the added function in this question is [-4, 3]

88. When finding the domain of a divided function we do the same as adding, but with an extra rule: g can't equal zero. So for this question the domain is (-4, 3)

89. To graph f + g you add the y-values for each x-value. I added a picture to help explain this one!

4 0
3 years ago
Find the value of x so that the line passing through the points will have the given slope: (x,6) and (10,-3) with a slope of -3/
Lana71 [14]
(x,6) \\
x_1=x \\
y_1=6 \\ \\
(10,-3) \\
x_2=10 \\ y_2=-3 \\ \\
\hbox{the slope: } m=\frac{y_2-y_1}{x_2-x_1}=\frac{-3-6}{10-x}=\frac{-9}{10-x} \\ \\
m=-\frac{3}{2} \\
\Downarrow \\
-\frac{3}{2}=\frac{-9}{10-x} \\
-\frac{3}{2}(10-x)=-9 \\
10-x=-9 \times (-\frac{2}{3}) \\
10-x=3 \times 2 \\
10-x=6 \\
-x=6-10 \\
-x=-4 \\
\boxed{x=4}
6 0
3 years ago
Find the missing dimension Use the scale 1:5<br><br> Model: 3ft<br> Actual: ?
Tasya [4]

Answer:

it will be 1 : 3

Step-by-step explanation:

8 0
2 years ago
Which statement completes the proof that the sum of the angles of triangle PRQ is 180°? Statement Justification
vichka [17]
M∠1 + m∠RPQ + m∠5 = 180° Definition of a Straight Angle

proof :  mes1= PRQ (alternate interior)

RPQ = 3 Opposite angle (vertex)
5 =Q  (alternate interior)
PRQ + RPQ + RQP = 180
7 0
3 years ago
Read 2 more answers
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