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3 years ago

Question 10

Mathematics

2 answers:

pochemuha3 years ago

5 0

Answer:

Jur 28 1/3 miles per gallon

Step-by-step explanation:

To find the miles per gallon, take the miles driven and divide by the gallons used.

Jur: 340/12 =28.333333 miles per gallon

Jack : 390/16 = 24.375 miles per gallon

Jur has better gas mileage because his number is higher

WARRIOR [948]3 years ago

3 0

Answer:

Jur's car

Step-by-step explanation:

Jur's car's mileage= 340/12=28.3333333333

Jack's car's mileage=390/16=24.375

brainliest if you are satisfied plz

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Match the equation and the description non-proportional Realationship

Aloiza [94]

Answer:

A. $y =\frac{7}{8}x+1$

B. $y = -10x$

C. $y = 2.5x - 7$

D. $y = 1.2x$

E. $y = -5x -8$

Step-by-step explanation:

Let the descriptions be A to E.

First, we need to note the followings.

An equation is of the form

$y = mx + b$

$m = slope$ and $b = y\ intercept$

A. Non proportional graph with positive y intercept

From the list of options, only

The slope of $y =\frac{7}{8}x+1$ is positive

and y intercept is also positive

B. Negative slope and pass through the origin.

Negative slope means m is negative

From the list of options

$y = -10x$ and $y = -5x -8$

Origin implies (0,0)

i.e: $x = 0$ and $y = 0$

For y = -10x

$0 = -10 * 0$

$0 = 0$ --- This is true

For $y = -5x -8$

$0 = -5 * 0 - 8$

$0 = 0 - 8$

$0 = -8$ --- This is not true

Hence:

$y = -10x$ fits this description

C. Increases from left to right and b is negative

For b is negative, we have the following:

$y = -5x -8$ and

$y = 2.5x - 7$

An increment from left to right, means the slope is positive.

So, we have:

$y = 2.5x - 7$

D. Positive slope and contains (0,0)

From the options, we have the following functions left:

$y = -5x -8$ and

$y = 1.2x$

But $y = 1.2x$ has a positive slope and also contain (0,0) because

$0 = 1.2 * 0$

$0 = 0$

E. Negative m and Negative b

$y = -5x -8$ has these descriptions

3 0

3 years ago

Write the rule for the nth term of the following sequence.

denis-greek [22]

Answer:

$2^{n-3}$ is the nth term of the given sequence.

Step-by-step explanation:

The sequence given is

$\frac{1}{4},\frac{1}{2},1,2,4 .....$

We can clearly see that 1st term is $\frac{1}{4}$ and 2nd term is $\frac{1}{2}$

2nd term is obtained by multiplying the 1st term by 2.

2nd term is $\frac{1}{2}$ and 3rd term is 1.

3rd term is obtained by multiplying the 2nd term by 2.

3rd term is 1 and 4th term is 2.

4th term is obtained by multiplying the 3rd term by 2.

Clearly, the given series is a Geometric Progression(GP) with

First term, $a = \frac{1}{4}$

Common Ratio, $r = 2$

We know that $n^{th}$ term for a GP is:

$a_n = ar^{n-1}$

Putting values of a and r

$a_n = \dfrac{1}{4}2^{n-1}\\a_n = \dfrac{1}{2^{2} }2^{n-1}\\a_n = 2^{n-1-2}\\a_n = 2^{n-3}$

Hence, $2^{n-3}$ is the nth term of the given sequence.

3 0

3 years ago

If you have apples 14 banana And 20 potatoes, Find The:

sattari [20]

Step-by-step explanation:

Firs prime factorisation then we will find their GCF and it is 2

7 0

3 years ago

Read 2 more answers

mr. Murphy has an old coin that has ten sides if it's shape is a polygon how many angles does the old coin have

alekssr [168]

My guess is that there is 5 angles and 5 sides... because i divided 10 in half
likeee this
10 ÷ 2 = 5
and bam we have our answer

7 0

3 years ago

17. Julie has $80 in her savings account and plans to save Sr each

marshall27 [118]

Answer:

$8(x + 10)

Step-by-step explanation:

The expression $8x + $80 has two terms. They are $8x and $80.

When you factor an expression, you are looking for numbers that every term in the expression can divide by (and give a whole number).

Just by looking at the terms, you see they both have $ you can factor out. They can both also be divided by 8. This is called taking out a common factor.

$8x + $80 Take out the common factor

= ($8x) / $8 + ($80) / $8

= $8(x + 10) The common factor goes outside the terms' bracket

This expression can't be factored more because there are no common factors. The binomial also doesn't have square numbers for example, which might make a case where you need to factor further with different methods.

7 0

4 years ago