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2 years ago

Question 4 (5 points)

Mathematics

1 answer:

grigory [225]2 years ago

4 0

Answer: 9 left 5 up

Step-by-step explanation:

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Joshua used 23 more craft sticks on his project than Candice. Joshua used 41 craft sticks. How many craft sticks did Candice use

Aloiza [94]

Candice used eighteen craft sticks.

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3 years ago

Amy ate 27.5 cookies in 5.5 minutes. How many cookies did she eat per minute?

Pavlova-9 [17]

Answer:

5 cookies per minute.

Step-by-step explanation:

To do this, we divide 27.5 by 5.5 to get the unit rate, in other words, the amount of cookies eaten per minute. This gets us 5. That means Amy ate 5 cookies per minute.

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2 years ago

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Which of the following expressions could you use to estimate 47% of 89?

Orlov [11]

Answer:

The last choice

Step-by-step explanation:

0.47 times 89

⭐ Please consider brainliest! ⭐

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3 years ago

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Prove the following statement using a proof by contraposition. Yr EQ,s ER, if s is irrational, then r + 1 is irrational.

sp2606 [1]

Answer:

I think that what you are trying to show is: If $s$ is irrational and $r$ is rational, then $r+s$ is rational. If so, a proof can be as follows:

Step-by-step explanation:

Suppose that $r+s$ is a rational number. Then $r$ and $r+s$ can be written as follows

$r=\frac{p_{1}}{q_{1}}, \,p_{1}\in \mathbb{Z}, q_{1}\in \mathbb{Z}, q_{1}\neq 0$

$r+s=\frac{p_{2}}{q_{2}}, \,p_{2}\in \mathbb{Z}, q_{2}\in \mathbb{Z}, q_{2}\neq 0$

Hence we have that

$r+s=\frac{p_{1}}{q_{1}}+s=\frac{p_{2}}{q_{2}}$

Then

$s=\frac{p_{2}}{q_{2}}-\frac{p_{1}}{q_{1}}=\frac{p_{2}q_{1}-p_{1}q_{2}}{q_{1}q_{2}}\in \mathbb{Q}$

This is a contradiction because we assumed that $s$ is an irrational number.

Then $r+s$ must be an irrational number.

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2 years ago

Which pairs of angles are congruent?

Burka [1]

Answer:

b) angles 1 and 4 are congruent.

Hope it helps!

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2 years ago