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2 years ago

0.65 is 10 times as much as

Mathematics

1 answer:

leonid [27]2 years ago

3 0

0.65 x 10 = 6.5
0.65 is 10 times as much as 6.5

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A garden hose having an internal diameter of 0.740 in. ( 1.8796 cm ) is connected to a lawn sprinkler that consists merely of an

lara31 [8.8K]

Answer:

It will leave the sprinkler at speed of $v_2=613.87m/sec$

Step-by-step explanation:

We have given internal diameter of the garden hose $d_1=0.740in=1.8796cm$

So radius $r_1=\frac{d_1}{2}=\frac{1.8796}{2}=0.9398cm$

So area $A_1=\pi r_1^2=3.14\times 0.9398^2=2.7733cm^2$

Water in the hose has a speed of 4 ft/sec

So $v_1=4ft/sec=121.92cm/sec(As\ 1ft/sec\ =30.48cm/sec)$

Number of holes n = 36

Diameter of each hole $d_2=0.1397cm$

So radius $r_2=0.0698cm$

So area $A_2=\pi r^2=3.14\times 0.0698^2=0.0153cm^2$

From continuity equation

$A_1v_1=nA_2v_2$

$2.7733\times 121.92=36\times 0.0153\times v_2$

$v_2=613.87m/sec$

7 0

2 years ago

4х = 32<br> А. x= 9<br> В. x= 8<br> с. x= 28<br> D. х = 128

STatiana [176]

Answer:

Step-by-step explanation:

Step 1: Divide both sides by 4.

4x/4 = 32/4

4x/4 leaves you with x by itself, and 32/4 is 8. So x = 8

3 0

2 years ago

Find the volume of each figure. Round to the nearest tenth if necessary.

ziro4ka [17]

Answer:

112

Step-by-step explanation:

The volume is given by l*b*h=4*4*7=112

7 0

2 years ago

Qual é a raiz quadrada de 84

Hunter-Best [27]

9.16515138991 es la raíz cuadrada

7 0

2 years ago

Explain how you could use 25% of a number to find the number

Alex17521 [72]

Answer:

Step-by-step explanation: 25 percent means one fourth. To calculate 25 percent of a number, simply divide it by 4. For example, 25 percent of 12 is 12 divided by 4, or 3. 10 percent means one tenth.

4 0

2 years ago