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3 years ago

I need help with question 1.

Mathematics

1 answer:

damaskus [11]3 years ago

8 0

What I think that he meant by that is that math is not mainly common sense. You use math in every day life, so logical thinking is an important foundational skill to math. So, yes, I agree.

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The thickness of a book varies directly with

Bumek [7]

$\qquad \qquad \textit{direct proportional variation}\\\\\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill }\\\\\textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill }\\\\[-0.35em]~\dotfill$

$\stackrel{\textit{"th" varies directly with "p"}}{th=kp}\qquad \textit{we also know that} \begin{cases} th=1.8\\ p=350 \end{cases} \\\\\\ 1.8=k(350) \implies \cfrac{9}{5}=350k\implies \cfrac{9}{1750}=k~\hfill \boxed{th=\cfrac{9}{1750}k} \\\\\\ \textit{when p = 84, what is "th"?}\qquad th=\cfrac{9}{1750}(84)\implies th=\cfrac{54}{135}\implies th=0.432$

8 0

2 years ago

Kermit's favorite iced tea is made with 15 tea bags in every 2 liters of water. Peggy made a 12-liter batch of iced tea with 90

Anestetic [448]

Answer:

C. It is just right.

Step-by-step explanation:

We want to compare the ratios ...

bags : liters = 15 : 2

and

bags : liters = 90 : 12

If we multiply the numbers of the first ratio by 6, we see they are identical to those in the second ratio:

(15)(6) : (2)(6) = 90 : 12

The ratio of bags to liters for Peggy's tea matches the ratio Kermit likes. He will think it is just right.

6 0

4 years ago

Alice is paying her bill at a restaurant. The tax on the cost of her meal is 5%. She decides to leave a tip of 20% of the cost o

iogann1982 [59]

M* .20 + m * 1.05 =

5 0

3 years ago

You spend $40 on $5 pounds of concrete.what is the unit rate in dollars per pound

kifflom [539]

Answer:

$8/pound

Step-by-step explanation:

$40 ÷ 5 lbs = 8$ per pound

6 0

3 years ago

Read 2 more answers

I need help I'm dumb

Akimi4 [234]

Answer:

this is easy just place the value of x in the formula

Step-by-step explanation:

1) y=-2x-5 this wpuld equal y=-2(-6)-5

i am going to do one and you do the rest

y= -2(-6)-5

y= (12)-5

y= -60

Now i got 12 positive because is we look at the rule os signs -+-=+

so -2(-6)= 12

and the pharentesis= multiplication

5 0

3 years ago