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o-na [289]
2 years ago
12

Which expression could not be used to evaluate 25 · 18

Mathematics
1 answer:
Oxana [17]2 years ago
6 0
What are the options?
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a box contains 5 plain pencils and 5 pens. a second box contains 7 color pencils and 5 crayons. one item from each box is chosen
Ket [755]
First box: \dfrac{pen}{total}=\dfrac{5}{10}=\dfrac{1}{2}

Second box: \dfrac{crayon}{total}=\dfrac{5}{12}

Multiply them:

\dfrac{1}{2}*\dfrac{5}{12}=\dfrac{5}{24}

The probabilityis \dfrac{5}{24}
5 0
3 years ago
A scale on a map shows that 2.5 centimeters represent 15 kilometers.
MrRissso [65]

Answer:

cm for centimeters, km for kilometers.

 

If 2.5cm → 15 km, then

 17.5 cm → x km

 

x= (15km*17.5cm)/(2.5cm)=105 km

Step-by-step explanation:

4 0
3 years ago
If the marginal propensity to consume is 0.8, (a) what is the value of the multiplier?
pentagon [3]
Given the marginal propensity to consume (MPC), the miltiplier is given by

Multiplier = 1 / (1 - MPC)

Given that the marginal propensity to consume is 0.8, the multiplier is given by

Multiplier = 1 / (1 - 0.8) = 1 / 0.2 = 5
7 0
3 years ago
Solve for x:<br> -1/3(4x+2)=1/3(x+11)<br><br> A. -13/3<br> B. -3<br> C. -13/5<br> D. -9/5
Nataly_w [17]
X=-13/5

Simplify both sides of the equation, isolate the variable, and then you get your answer. 
7 0
3 years ago
The theoretical probability of a given event is a fraction of 9 and 13. explain what each number represent
Lostsunrise [7]
9 represents the event, 13 represents all possible events.

I have a bag of 13 marbles. 9 of my marbles are blue, 4 are red. My probability of reaching in and pulling out a blue marble at random is 9/13 (Which is 69%)
5 0
3 years ago
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