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QveST [7]
3 years ago
9

The speed (S) an object falls varies directly with time. If the speed is 49.0 m/s after 5 seconds, then what is the speed after

3 seconds?
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
8 0

Answer:

not sure

Step-by-step explanation:

i dunno

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At a family reunion, a family friend bring 20 lb of ice and 30 cup. Which expression show the greatest common factor , using dis
Zepler [3.9K]

Answer:

10(2+3)

Step-by-step explanation:

We are given that

Ice=20 lb

Cup=30

We have to find the expression which shows the greatest common factor using distributive property of 20 and 30.

We know that distributive property of integers a,b and c

a\cdot(b+c)=a\cdot b+a\cdot c

20=2\times 10

30=3\times 10

10(2+3)=10\times 2+10\times 3

Hence, the highest common factor of 20 and 30=10

Expression:10(2+3)

3 0
3 years ago
It is given that 3/7 , 12/m and n/49 are equivalent fractions. Find the value of ‘m’ and ‘n’.
denis23 [38]

Answer:

m=28

n=21

Step-by-step explanation:

3×4=12

7×4=28

28×1.75=49

12×1.75=21

4 0
3 years ago
The angles listed from largest to smallest are __________________
photoshop1234 [79]

Answer:

B, A, C

Step-by-step explanation:

That's a 30-60-90 triangle.

7 0
3 years ago
The expresion 14.42d + 12.24c can be used to find the total cost of d punds of almonds and c pounds of cashews how much does it
madam [21]

Answer:

Therefore the total cost of 3\frac{1}{2} pound of almonds and 3\frac{1}{2} pound of cashews is

y=\frac{36.05}{d}+\frac{30.6}{c}

[Where y is in $]

Step-by-step explanation:

[The unit of price is not given, I assume the unit of cost as $]

Given expression is 14.42 d + 12.24 c .

Where the amount of almond is denoted by d pounds.

and  the amount of cashews is denoted by c pounds.

The cost price of d pound of almond is $14.42.

The cost price of 1 pound of almond is \$\frac{14.42}{d}

Then the cost of 3\frac{1}{2} pound of almond is =\$\frac{ 14.42 \times3 \frac{1}{2} }{d}

                                                                 =\$\frac{36.05}{d}

Again from the given expression we get that,

The cost price of c pound of cashews is $12.24

The cost price of 1 pound of cashews is =\$\frac{12.24}{c}

Then the cost of 3\frac{1}{2} pound of cashews is =\$\frac{ 12.24 \times3 \frac{1}{2} }{c}

                                                                    =\$\frac{30.6}{c}

Therefore the total cost of 3\frac{1}{2} pound of almonds and 3\frac{1}{2} pound of cashews is

y = =\frac{36.05}{d}+\frac{30.6}{c}

[Where y is in$]

7 0
3 years ago
Based on housing data below which equation can be used to calculate fair housing prices?
VMariaS [17]

Answer:

B. y = 0.097x + 11.142

Step-by-step explanation:

In order to find the best equation to descibe the housing price, we have to calculate the slope of the line  first.

The equation of the line can be written as

y=mx+q

where m is the slope and q the y-intercept.

In order to have the most accurate estimate for the slope, we use the first point and the last point, that are:

(1900, 196)

and

(2200, 225)

The slope of the line is calculated as:

m=\frac{y_2-y_1}{x_2-x_1}=\frac{225-196}{2200-1900}=0.097

So, the slope of the line is 0.097.

Therefore, the correct option is the only one having a slope of 0.097, which is:

B. y = 0.097x + 11.142

5 0
3 years ago
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