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WITCHER [35]
3 years ago
6

Aldo bought 20 pounds of rice for $12. How many pounds of rice did he get per dollar

Mathematics
2 answers:
nordsb [41]3 years ago
7 0
20 divided by 12 equals 1.66666 continuous. Rounding on the dollar would be $1.67.
QveST [7]3 years ago
5 0

Answer: about 1.6 or 1.7

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Solve for 19= -3a -5
Vesnalui [34]

Answer:

a = -8

Step-by-step explanation:

19 = -3a - 5

Add 5 to both sides.

24 = -3a

Divide both sides by -3.

-8 = a

Switch sides.

a = -8

6 0
3 years ago
Read 2 more answers
What is the range of the function on the graph?
Cloud [144]

Answer:

all real numbers greater than or equal to 2

which is [2, infinite)

3 0
2 years ago
What is the advantage of multiply both sides of the equation by the least common multiple of the denominators in the first step
Olenka [21]
To make the equation easier so that you don't have to use fractions.
8 0
3 years ago
A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a
erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

H_0 : p=0.8\\H_a: p>0.80

So we use z-test for one population proportion (right-tailed test)

According to this informaton, we defined that

\alpha=0.05

z_c=1.64 (critical value)

So our Rejection region is R={z:z>1.64}

z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591

Not rejection.

6 0
3 years ago
Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 3617 in3. One day, her sink clogged. She has
Oxana [17]

Answer:

864

Step-by-step explanation:

Volume of cup = ⅓pi×r²×h

Diameter = 2, radius = 1

= ⅓×3.142 × 1² × 4 = 4.1893333333 in³

To empty the sink, 864 scoops will be required

(3617/4.1893333 = 863.383)

3 0
3 years ago
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