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3 years ago

I NEED THE ANSWER ASAP! IT'S DUE TOMORROW!! :(

Mathematics

1 answer:

tresset_1 [31]3 years ago

6 0

You need to complete it between 6 and 7 miniutes, no more than 7 and no less than 6

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What is the length of the diagonal of a poster board with dimensions 22 inches by 28 inches? Round to the nearest tenth.

devlian [24]

Answer:

The length of the diagonal of a poster board is $35.6\ in$

Step-by-step explanation:

Let

x----> the length of the diagonal of a poster board

we know that

Applying the Pythagoras Theorem

$x^{2}=22^{2}+28^{2} \\ \\x^{2}=1,268\\ \\x=35.6\ in$

4 0

2 years ago

Read 2 more answers

A boat travels 475 miles in 30

Sholpan [36]

Answer:

approx 15.5 hours

Step-by-step explanation:

475/30 = 15.83 miles per hour

245 = 15.83·t

t = 245/15.83

t = 15.5 hours

7 0

3 years ago

The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho

mestny [16]

30 ounces of the coffee John likes consists of

$0.96\cdot30=28.8$ ounces of water
$0.04\cdot30=1.2$ ounces of cocoa

To this mixture we're adding $x$ ounces of water, so that the new mix has a total volume of $30+x$ ounces and matches the composition of the coffee Lily likes. This means it would consist of

$0.973\cdot(30+x)=28.8+x$ ounces of water
$0.027\cdot(30+x)=1.2$ ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for $x$ :

$0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x$

$\implies0.39=0.027x$

$\implies x\approx14.4$

###

Just to confirm: the new mixture consists of

$28.8+14.4=43.2$ ounces of water
$1.2+0=1.2$ ounces of cocoa

giving a total volume of $43.2+1.2=44.4$ ounces of coffee, and $\dfrac{43.2}{44.4}\approx0.973$ , as required.

4 0

3 years ago

Round fuis number 5,731 to the nearest 100

Reil [10]

5700 is 5731 rounded to the nearest hundred

8 0

3 years ago

Read 2 more answers

Please answer quickly!!!!! Will give the brainiest There is a pic attached.

Alexeev081 [22]

Answer:

A. 2/3

Step-by-step explanation:

There are 12 tiles in total, and 8 tiles with numbers that are greater than 4.

Express this as a fraction:

8/12

Simplify:

2/3

Hope this helps

5 0

2 years ago