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VLD [36.1K]
3 years ago
14

PLEASE HELP I'M NOT GOOD AT MATH

Mathematics
1 answer:
exis [7]3 years ago
8 0

Answer:

It is a proportional relation.

Step-by-step explanation:

We have given that at Time (hours) = 2, Distance (miles) = 90 and at Time (hours) = 3, Distance (miles) = 135

Therefore, the speed we get from the first two row data = \frac{135 - 90}{3 - 2} = 45 miles/hr.

So, the speed is maintained through out the journey as

At t = 0, Distance = 0

At t = 2 hours, Distance = 2 × 45 = 90 miles

At t = 3 hours, Distance = 3 × 45 = 135 miles

At t = 5 hours, Distance = 5 × 45 = 225 miles

At t = 6 hours, Distance = 6 × 45 = 270 miles

Therefore, the values matches with the table.

Hence, it is a proportional relation. (Answer)

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A test is worth 75 points. Multiple-choice questions are worth 2 points and
Likurg_2 [28]

Answer:

D. m+s=30

2m+3s=75

Step-by-step explanation:

let m be the no of multiple choice questions and s be the short questions then there are a total of 30 questions

m+s=30------A

there are 2 points for m(multiple choice questions) and 3 points for short questions (s)  and totalling to 75

2m+ 3s=75

7 0
3 years ago
Choose the expression that represents a quadratic expression. 9x − 2 5x2 + 9x − 1 −2x3 + 8x2 − 7x + 1 x4 − 12x3 + 8x2 − 7x + 1
elena-s [515]

Answer:

5 {x}^{2}  + 9x - 1

Step-by-step explanation:

A quadratic expresion is of the form

a {x}^{2}  + bx + c

where

a \ne0

The give options are:

9x-2

5{x}^{2}+9x - 1

-2x^3+8 {x}^{2}  -7x +1

x^4-12x^3+8 {x}^{2}  -7x +1

From the given options, the only expression which is quadratic is

5 {x}^{2}  + 9x - 1

where a =5, b=9 and c=-1

Therefore the correct choice is the second option.

3 0
4 years ago
24 oz of soda cost 1.29 at that rate how much would you expect 30 oz. of soda to cost?
Naily [24]

Answer:

about $1.60 i think

Step-by-step explanation:

3 0
3 years ago
Harry went to the bakery with $50 to buy cupcakes and fruit tarts. One cupcake costs $3.50 and one fruit tart costs $3. Harry bo
mote1985 [20]

Answer:

28+3x\leq 50

Step-by-step explanation:

We are given the following in the question:

Cost of one cupcake = $3.50

Cost of one fruit tart = $3

Total money Harry have = $50

Harry bought 8 cupcakes and x fruit tarts.

We have to write the inequality giving relation between the total number of cupcakes and fruit tarts Harry can buy the amount of money he has.

Total cost of purchase =

= Total cost of cupcakes + Total cost of fruit tarts

=(8\times 3.50) + (x \times 3)\\=28 + 3x

Now, this total cost of Harry's purchase should be less than than equal to $50.

28+3x\leq 50

is the required linear inequality.

4 0
3 years ago
Can you please help me with this I will mark the BRAINLIEST who ever can help thanks​
son4ous [18]

QUESTION:

WORK OUT THE  VALUE OF 2^{6}

Or 2 times 2 times 2 times 2 times 2 times 2 times 2

ANSWER:

So, 2^6 is:

64

Now, 7^4 is:

2,401

Hope it helps!

Grace Rosalia

5 0
3 years ago
Read 2 more answers
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