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3 years ago

What adds to 50 and multiplies to 70

Mathematics

2 answers:

Zina [86]3 years ago

8 0

1.44123*48.56987

Or something like 1.44 * 48.56

I did the math but it is horrendous

kozerog [31]3 years ago

5 0

Im thinking 10 because 10+40=50 and 10x7=70

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Romeo first saw Juliet when she was 87 meters away. He started running toward her at a rate of 5 m/s Three seconds later Juliet

Vanyuwa [196]

3.625 seconds, if I did my math correctly.

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4 years ago

Ray is baking cookies for a bake sale. He uses 15.25 ounces of flour to bake 4 batches of cookies on Monday. If he uses 8 ounces

laiz [17]

Answer:

1 Batch... i think.

Step-by-step explanation:

So, like, half of 15 is 7.5. That makes two batches. I don't think we're supposed to say 0.5=1 batch here, cause that is unrealistic.

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3 years ago

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Find the value of 5 in 584.2

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3 years ago

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A bag contains red marbles, white marbles, and blue marbles. Randomly choose two marbles, one at a time, and without replacement

dsp73

Answer:

$P(First\ White\ and\ Second\ Blue) = \frac{3}{28}$

$P(Same) = \frac{67}{210}$

Step-by-step explanation:

Given (Omitted from the question)

$Red = 7$

$White = 9$

$Blue = 5$

Solving (a): $P(First\ White\ and\ Second\ Blue)$

This is calculated using:

$P(First\ White\ and\ Second\ Blue) = P(White) * P(Blue)$

$P(First\ White\ and\ Second\ Blue) = \frac{n(White)}{Total} * \frac{n(Blue)}{Total - 1}$

<em>We used Total - 1 because it is a probability without replacement</em>

So, we have:

$P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{21 - 1}$

$P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{20}$

$P(First\ White\ and\ Second\ Blue) = \frac{9*5}{21*20}$

$P(First\ White\ and\ Second\ Blue) = \frac{45}{420}$

$P(First\ White\ and\ Second\ Blue) = \frac{3}{28}$

Solving (b) $P(Same)$

This is calculated as:

$P(Same) = P(First\ Blue\ and Second\ Blue)\$ $or\ P(First\ Red\ and Second\ Red)\ or\ P(First\ White\ and Second\ White)$

$P(Same) = (\frac{n(Blue)}{Total} * \frac{n(Blue)-1}{Total-1})+(\frac{n(Red)}{Total} * \frac{n(Red)-1}{Total-1})+(\frac{n(White)}{Total} * \frac{n(White)-1}{Total-1})$

$P(Same) = (\frac{5}{21} * \frac{4}{20})+(\frac{7}{21} * \frac{6}{20})+(\frac{9}{21} * \frac{8}{20})$

$P(Same) = \frac{20}{420}+\frac{42}{420} +\frac{72}{420}$

$P(Same) = \frac{20+42+72}{420}$

$P(Same) = \frac{134}{420}$

$P(Same) = \frac{67}{210}$

6 0

3 years ago

The measure of a minor arc equals the measure of a(n) blank angles.

tresset_1 [31]

Answer:

option A is correct.

Step-by-step explanation:

Minor arcs are associated with less than half of a rotation, so minor arcs are associated with angles less than 180°

Since, A minor arc is an arc smaller than a semicircle. A central angle which is subtended by a minor arc has a measure less than 180°.

The minor arc is equal to the measure of the central angle.

We could also see the angle from the figure attached to the answer.

Hence we will obtain an acute angle.

Hence, option A is correct.

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3 years ago

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