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3 years ago

Which statement is true?

Mathematics

1 answer:

Solnce55 [7]3 years ago

7 0

Answer:

1. -2.4>-2.40

2.×=3

3.r=8

4.{3,4}

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Bradley has a goal to work 28 hours each week at the pizza shop. So far he has worked 12 hours. How many more hours does he need

Aleks04 [339]

Answer:

16 hours

Step-by-step explanation:

28 hours - 12 hours = 16 hours

Bradley has 16 hours of work to achieve in order to reach his weekly goal.

3 0

3 years ago

Read 2 more answers

A rectangular chalkboard is 1.7 m long and 0.9 m wide.

IRINA_888 [86]

Answer:

$A=1.53\ m^2$

Step-by-step explanation:

The length of a chalkboard, l = 1.7

The width of a chalkboard, b = 0.9 m

We need to find the area of the chalkboard. The formula for the area of a rectangle is given by :

$A=L\times B\\\\A=1.7\times 0.9\\\\A=1.53\ m^2$

So, the area of the chalkboard is equal to $1.53\ m^2$ .

3 0

2 years ago

A flower vendor sells roses for 50 cents each. how much does she pay per flower if she makes $6.00 on every $20 worth sold

kkurt [141]

We are given

selling price of one flower is $0.50

so, $SP=0.50$

Let's assume

she sold 'n' flowers to get $20

so, total amount she get after selling 'n' flowers is

$=0.50*n$

$=0.50n$

This is supposed to be $20

so, we can set it equal to 20

$20=0.50n$

now, we can solve for n

we get

$n=40$

we are given

she makes $6.00 on every $20 worth sold

so, we can find cost of 40 flowers is 20-6

total cost is 14

or cost of 40 flowers is $14

now, we can find cost of one flower

$CP=\frac{14}{40}$

$CP=0.35$

so, cost of each flower is 35 cents...............Answer

8 0

3 years ago

In a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted o

Maksim231197 [3]

Answer:

324

Step-by-step explanation:

given that in a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?"

i.e. Sample proportion $p=0.74\\q =1-p =0.26\\$

Margin of error = 4% = 0.04

Confidence level =90%

Z critical value for 90% = 1.645

Margin of error = 1.645 * std error

Hence std error = $\frac{0.04}{1.645} \\=0.0243$

Std error is also equal to

$\sqrt{\frac{pq}{n} } =\sqrt{\frac{0.74(0.26)}{n} } =0.0243\\\sqrt{n} =18..05\\n = 325.83~324$

Sample size should be 324.

The formula is sample size = (Z critical value)^2 (pq)/(Margin of error )^2

3 0

3 years ago

Indigo measures a 2-ounce sample for an experiment. How many grams are in 2 ounces? (1 oz = 28.35 g)

Nimfa-mama [501]

Answer:

56.70 grams

Step-by-step explanation:

Multiply: 28.35*2=56.70

(Picture included)

Sorry about my handwriting!

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

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3 years ago