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2 years ago

Maria mows 2/3 of a lawn in 1/5 hour. How Many similar-sized lawns can she mow in 1 hour?

Mathematics

2 answers:

sp2606 [1]2 years ago

7 0

Answer:

10/3 lawn

Step-by-step explanation:

2/3 of a lawn in 1/5 hour

-> 1 hour cab mow = 2/3(lawn) ÷ 1/5(hour)* 1(hour)

= 10/3 = 3,666666667 lawns

DIA [1.3K]2 years ago

4 0

Answer:

maria can mow 3 lawns

Step-by-step explanation:

if it takes 1/5 of an hour to mown 2/3 of one lawn

60 divide by .2 = 12

that means it takes 12 miuntes to mown 2/3 of a lawn, so it takes 6 minutes for each 1/3

so 12+6= 18 minutes for one whole lawn

so 18 plus 18 equals 36

so 36 minutes for 2 lawns

then add another 18 minutes and you'll get 54 minutes. That's almost a whole hour

so Maria can mown 3 lawns

( if im wrong, im sorry i tried)

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The weight of a USB flash drive is 30 grams and is normally distributed. Periodically, quality control inspectors at Dallas Flas

vazorg [7]

Answer:

The critical t values are -1.746 and 1.746.

Step-by-step explanation:

Given information:

The weight of a USB flash drive is 30 grams and is normally distributed.

Population mean = 30

Sample size = 17

Sample mean= 31.9

Standard deviation = 1.8

Significance level, α=0.10

Null hypothesis: $H_0:\mu=30$

Alternative hypothesis: $H_1:\mu\neq 30$

It is a two tailed test.

The t-critical values for a two-tailed test, for a significance level of α=0.1 are -1.746 and 1.746.

Therefore the critical t values are -1.746 and 1.746.

5 0

2 years ago

An assortment of chocolates contains exactly 6 nut clusters, 3 truffles, 5 caramels, and 10 fruit creams. Complete the statement

Luba_88 [7]

Answer:

I think its 24

Step-by-step explanation:

The question says the ratio of truffles to the total chocolates in the assortment is. Total means whole number or amount so I added it up and got 24.

4 0

2 years ago

The product of sin 30 degrees and sin 60 degrees is the same as the product of

zysi [14]

Answer:

$sin(30\°)*sin(60\°)=cos(60\°)*cos(30\°)$

Step-by-step explanation:

we know that

$sin(\alpha)=cos(\beta)$

when

$\alpha+\beta=90\°$ -------> complementary angles

$sin(30\°)=cos(60\°)$

$sin(60\°)=cos(30\°)$

Because

$30\°+60\°=90\°$ -------> complementary angles

In this problem the product of

$sin(30\°)*sin(60\°)$

is equal to

$cos(60\°)*cos(30\°)$

therefore

$sin(30\°)*sin(60\°)=cos(60\°)*cos(30\°)$

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rosijanka [135]

Answer:200577

Step-by-step explanation:

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A basket contains 11 apples, of which two are rotten. a sample of three apples is selected at random. in how many ways can two r

Marianna [84]

The ways the two rotten apple be selected in taking 3 apples from the bag, can be solve using fundamental counting principles.
P = 2 x 1 x 9
P = 18 ways
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2 years ago