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3 years ago

12

25 points - Can anyone solve this pls?? ty so much

1 answer:

Citrus2011 [14]3 years ago

7 0

Surface area of larger box is 69% more so as a scale factor that is 1.69

Square root 1.69 = 1.3

Height of smaller box x 1.3 is height of larger box.

18 x 1.3 = 23.4 cm

Height = 23.4 cm

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Find the value of the variable and YZ if Y is between X and Z. <br><br> XY=4n+3, YZ=2n-7,XZ=22

ruslelena [56]

Answer:

$\large \boxed{n = \dfrac{13}{3}; YZ = \dfrac{5}{3}}}$

Step-by-step explanation:

I think you have the situation shown in the diagram below.

1. Calculate the value of n

$\begin{array}{rcl}XY + YZ & = & XZ\\4n+ 3 + 2n - 7 & = & 22\\6n - 4 & = & 22\\6n & = & 26\\n & = & \dfrac{26}{6}\\\\& = & \mathbf{\dfrac{13}{3}}\\\end{array}\\\large \boxed{\mathbf{n = \dfrac{13}{3}}}$

2. Calculate the value of YZ

$\begin{array}{rcl}YZ & = & 2n - 7\\& = & 2\left (\dfrac{13}{3}\right ) - 7 \\\\& = & \dfrac{26}{3} - 7\\\\& = & \dfrac{26}{3} - \dfrac{21}{3}\\\\& = & \dfrac{5}{3} \\\\\end{array}\\\large \boxed{YZ = \mathbf{ \dfrac{5}{3}}}$

7 0

3 years ago

Solve: y = -5x - 19 y = 5x - + 1<br><br>PLEASE HELPPP!!!<br>

stepladder [879]

Y=-5x-19
Y=5x +1
Y=-18

-18=5x+1
-19=5x
X= 3.8

Might be wrong

8 0

3 years ago

If u like ramen u gotta answer this plzzzzzzzzzz :p

Vesna [10]

Answer:

im pretty sure its 4 and 5

Step-by-step explanation:

6 0

3 years ago

8 > -10, divide both sides by 2

choli [55]

Answer:

4>-5

Step-by-step explanation: is that what u mean?

3 0

3 years ago

Read 2 more answers

Marisela cut four equivalent lengths of ribbon. Each was 5 eighths of a yard long. How many yards of ribbon did she cut? Express

kakasveta [241]

Answer:

$2\frac{1}{2}$ yards.

Step-by-step explanation:

Please find the attachment.

We have been given that Marisela cut four equivalent lengths of ribbon. Each was 5 eighths of a yard long.

To find yards of ribbon cut by Marisela, we will multiply 4 by 5 eighths of a yard (5/8).

$\text{Total ribbon cut by Marisela}=4\times \frac{5}{8}$

$\text{Total ribbon cut by Marisela}=\frac{4\times 5}{8}$

$\text{Total ribbon cut by Marisela}=\frac{20}{8}$

Express answer as the sum of whole number and the remaining fractional units:

$\text{Total ribbon cut by Marisela}=\frac{16+4}{8}$

$\text{Total ribbon cut by Marisela}=\frac{16}{8}+\frac{4}{8}$

$\text{Total ribbon cut by Marisela}=2+\frac{4}{8}$

$\text{Total ribbon cut by Marisela}=2\frac{4}{8}$

Therefore, Marisela cut $2\frac{4}{8}$ yards of ribbon.

7 0

4 years ago