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3 years ago

Sara can type 90 words in 4 minutes.About how many words would you expect her to type in 10 minutes?

1 answer:

3 0

90 words in 4 minutes is the same as 45 words in 2 minutes because you divide both sides by 2. 2 goes into 10, 5 times, so 45x5=225.
You can expect her to type 225 words in 10 minutes.

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6 in<br> 24 in<br><br> I don’t get this at all and I have trouble with math

nekit [7.7K]

What’s the full question?

6 0

3 years ago

Kenji is decorating papers with a total of 15 heart stickers and 12 star stickers for the child he is babysitting. If he wants t

Marina CMI [18]

Answer: The greatest number of pages Kenji can decorate = 3

Step-by-step explanation:

Given: Total heart stickers = 15

Total star stickers =12

If all the papers identical, with the same combination of heart and star stickers and no stickers left over.

Then the greatest number of pages Kenji can decorate = GCD(15,12) [GCD=greatest common divisor]

Since 15 = 3 x 5

12=2 x 2 x 3

GCD(15,12) =3

Hence, the greatest number of pages Kenji can decorate = 3

7 0

3 years ago

A rectangular pyramid has a height of 10 meters. The base measures 8 meters in length and 12 meters in width. Two different tria

Colt1911 [192]

Answer:

The difference in the areas of the cross-sections is 20 m².

Step-by-step explanation:

^^^

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2 years ago

Estimate the radius of the object

Anvisha [2.4K]

Answer:

r = 1.41 mm

Step-by-step explanation:

Given that,

The circumference of the flower, C = 8.9 mm

We need to find its radius. We know that,

Circumference, $C=2\pi r$

Where

r is the radius of the object

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{8.9}{2\pi}\\\\r=1.41\ mm$

So, the radius of the object is equal to 1.41 mm.

7 0

3 years ago

El volumen de un prisma triangular es de 42 cm3, si su base mide 2 cm, y el largo es 6 cm ¿cuánto mide la altura?

icang [17]

Answer:

h = 7 cm

Step-by-step explanation:

In order to calculate the height of the triangular prism you use the formula for its volume, which is given by:

$V=\frac{1}{2}bhl$ (1)

V: volume = 42 cm3

b: base of the triangular face = 2 cm

l: length of the prism = 6 cm

h: height = ?

You solve the equation (1) for h, the height of the triangular prism:

$V=\frac{1}{2}bhl\\\\2V=bhl\\\\h=\frac{2V}{bl}$

You replace in the last equation the values of V, b and l:

$h=\frac{2(42cm^3)}{(2cm)(6cm)}=7cm$

hence, the height of the triangular prism is 7 cm

7 0

3 years ago