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Soloha48 [4]
3 years ago
10

Can someone please help me with my homework

Mathematics
1 answer:
sweet [91]3 years ago
6 0

Answer:

the first one

Step-by-step explanation:

75 is constant plus 13.5 every time and you want it to be equal or more than 130

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Which algebraic expression represents the phrase “two times the quantity of a number minus 12”?
Yakvenalex [24]

Answer:

The algebraic expression which represents the phrase “two times the quantity of a number minus 12” is : 2x- 12

Step-by-step explanation:

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

for example :-

3x + 4y – 7,  4x – 10, etc.

These expressions are represented with the help of unknown variables, constants and coefficients. The combination of these three (as terms) is said to be an expression. It is to be noted that, unlike the algebraic equation, an algebraic expression has no sides or equal to sign

let the quantity mentioned in the question be 'x'

therefore according to the statement the algebraic expression which represents the phrase “two times the quantity of a number minus 12” is : 2x- 12 is

⇒2x - 12 (answer)

more on algebraic expression at

brainly.com/question/20660076

#SPJ10

3 0
2 years ago
a bicycle tire is 28 inches in diameter. approximately how far does the bicycle move forward each time the wheel goes around? (u
belka [17]

ANSWER

88 \: inches

EXPLANATION

The given bicycle has a tyre that is 28 inches in diameter.

How far the bicycle moves forward each time the wheel goes around is the circumference of the bicycle tyre.

This is calculated using the formula:

C =\pi \: d

We substitute the diameter and

\pi =  \frac{22}{7}

C =  \frac{22}{7}  \times 28

This simplifies to

C =22 \times 4

88 \: inches

8 0
3 years ago
Read 2 more answers
Please help me find the perimeter.​
slavikrds [6]

Answer:

31.42 cm (rounded up to two decimal places)

Step-by-step explanation:

We first find the circumference of the semi-circle segment:

The circumference will be given by; \frac{1}{2} × π × D (where D is the diameter)

The diameter is 6 cm so circumference is;

\frac{1}{2} × π × 6 cm = 9.42 cm (rounded up to two decimal places)

The perimeter of the figure therefore is;

8cm + 6 cm + 8 cm + 9.42 cm = 31.42 cm

8 0
3 years ago
2 1/4 x2 1/4 in mixed number
maks197457 [2]

Answer:

5 \frac{1}{16} is the answer.

Step-by-step explanation:

Given:

2 \frac{1}{4} \times 2 \frac{1}{4}

<u>Step 1: Converting the mixed fraction into  fraction:</u>

Multiply  4 by 2 add  1 to the result.

<u></u>2\frac{1}{4}  =  \frac{4 \times 2+1}{4}

=\frac{8+1}{4}

=\frac{9}{4}

<u>Step 2: Performing the multiplication using the fraction</u>

= >\frac{9}{4} \times \frac{9}{4}

=> \frac{81}{16}

<u>Step 3: Converting the product back to  mixed fraction </u>

divide 81 by 16 and find the remainder

=>quotient \frac{remainder}{divisor}

Dividing 81 by 16 we get  5 as quotient and 1 as remainder

Thus the result in  mixed fraction will be

=> 5 \frac{1}{16}

4 0
3 years ago
HELP PLZ PICTURE^ Need it asap porfa
timurjin [86]

Answer:

it has one solution

Step-by-step explanation:

1.y=x-3

2. 3y-3x sub x-3 in place of y therefore

it can also be written as 3x-3x-9=9

if you add 9 to both sides 3x-3x-9+9=-9+9

0+0=0

3 0
3 years ago
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