answer plz i need help


if bob had x dollars and his sister Annika has four times as many , express algebraically the number of dollars Annika has

Answer:

55+8.5x=123

Step-by-step explanation:

The 55 represents the flat fee, the 8.5 represents the daily charge, x represents the number of days she rented it for, and 123 is the total amount

Answer:

The square root of 60

Answer:

pretty sure 15

Step-by-step explanation:

a square is four sides and then you would divide by 4 to get 15.

Answer: A is the correct answer (an =2,250+250(n-1)

Step-by-step explanation:

I hope this helped have fun cheating on the mid terms baddiesss

                               Question 9:

Given the equations

[tex]5x+2y=6;[/tex]

[tex]4x-8y=0[/tex]

solving the system of the equations

[tex]\begin{bmatrix}5x+2y=6\\ 4x-8y=0\end{bmatrix}[/tex]

[tex]\mathrm{Multiply\:}5x+2y=6\mathrm{\:by\:}4\:\mathrm{:}\:\quad \:20x+8y=24[/tex]

[tex]\mathrm{Multiply\:}4x-8y=0\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:20x-40y=0[/tex]

[tex]\begin{bmatrix}20x+8y=24\\ 20x-40y=0\end{bmatrix}[/tex]

[tex]20x-40y=0[/tex]

[tex]-[/tex]

[tex]\underline{20x+8y=24}[/tex]

[tex]-48y=-24[/tex]

[tex]\begin{bmatrix}20x+8y=24\\ -48y=-24\end{bmatrix}[/tex]

[tex]-48y=-24[/tex]

[tex]\frac{-48y}{-48}=\frac{-24}{-48}[/tex]

[tex]y=\frac{1}{2}[/tex]

[tex]y = 0.5[/tex] ( 0.5 is the result of rounding 0.5 to the nearest 0.01)

[tex]\mathrm{For\:}20x+8y=24\mathrm{\:plug\:in\:}y=\frac{1}{2}[/tex]

[tex]20x+8\cdot \frac{1}{2}=24[/tex]

[tex]20x+4=24[/tex]

[tex]\frac{20x}{20}=\frac{20}{20}[/tex]

[tex]x=1.00[/tex] ( 1.00 is the result of rounding 1 to the nearest 0.01 )

So, the solution is:

(x, y) → (1.00, 0.5)

                            Question 10)

Similarly the question 10 can be solved.

Given the equations

[tex]5x+2y=9;\:4x-3y=44[/tex]

solving

[tex]\begin{bmatrix}5x+2y=9\\ 4x-3y=44\end{bmatrix}[/tex]

[tex]\mathrm{Multiply\:}5x+2y=9\mathrm{\:by\:}4\:\mathrm{:}\:\quad \:20x+8y=36[/tex]

[tex]\mathrm{Multiply\:}4x-3y=44\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:20x-15y=220[/tex]

[tex]\begin{bmatrix}20x+8y=36\\ 20x-15y=220\end{bmatrix}[/tex]

[tex]20x-15y=220[/tex]

[tex]-[/tex]

[tex]\underline{20x+8y=36}[/tex]

[tex]-23y=184[/tex]

[tex]\begin{bmatrix}20x+8y=36\\ -23y=184\end{bmatrix}[/tex]

[tex]-23y=184[/tex]

[tex]y=-8.00[/tex]   ( -8.00 Rounded to the nearest 0.01 or  the Hundredths Place )

[tex]\mathrm{For\:}20x+8y=36\mathrm{\:plug\:in\:}y=-8[/tex]

[tex]20x+8\left(-8\right)=36[/tex]

[tex]20x=100[/tex]

[tex]x=5.00[/tex]  ( 5.00 Rounded to the nearest 0.01 or  the Hundredths Place )

So, the solution is:

(x, y) → (5.00, -8.00)

Answer:

11 dollars.

Step-by-step explanation:

Answer:

$11

Step-by-step explanation:

4 multiplied by 2.25 equals $9 therefore he would get $11 back because 9+11=20

<3 Enjoy,

    Dea

Answer:

D

Step-by-step explanation:

Answer:

Y= -x + 6

Step-by-step explanation:

Rise/Run

-1/1 = -1

Y-intercept: 6

Answer:

There's 3 total decimal places in both numbers.

Ignore the decimal places and complete the multiplication as if operating on two integers.

   1 9

×     2

+   3 8

=  3 8    Rewrite the product with 3 total decimal places.

Answer = 0.038

Therefore:

0.19 × 0.2 = 0.038

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

(Negative 1 and one-half, 3)

Answer:

Step-by-step explanation:

Givens

The midpoint formula is (x2 + x1)/2 , (y2 + y1)/2 = x_mid,y_mid

y_mid = 1

x_mid = -1

y2= 4

x2 = 2

Solution

(2 + x1)/2 = -1

(2 + x1) = -1 * 2

2 + x1 = -2

x1 = -2 -2

x1 = - 4

====================

(4 + y1)/2 = 1

4 + y1 = 2

y1 = 2 - 4

y1 = -2

Answer (-4,-2)

Answer:

X^2+6x+5

Step-by-step explanation

Answer:

need help with what just text me and I will help you because this looks easy

Step-by-step explanation:

imma help u

Answer: A rhombus is a parallelogram but a parallelogram is not a rhombus.

Step-by-step explanation:

Answer nope

Step-by-step explanation:

Answer: No

Step-by-step explanation:

Yes, the two ratios 4:6 and 6:9 are equal to 2:3.

A ratio in mathematics demonstrates how many times one number is present in another. For instance, if a dish of the fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six.

Given that there are two ratios 4:6 and 6:9. The equivalence of the two ratios will be calculated as:-

4 : 6 = ( 2 x 2 ) ÷ ( 2 x 3 )

4 : 6 = 2 : 3

6:9 = ( 2 x 3 ) ÷ ( 3 x 3 )

6: 9 = 2 : 3

4 : 6 = 6:9 = 2:3

Therefore, the two ratios 4:6 and 6:9 are equal to 2:3.

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Answer:

perimeter of square

Step-by-step explanation:

Answer: the answer is base of triangle, height of triangle

got it wrong because of that other guy answers was wrong

Answer:This problem is about linear equations. We assume Dale drive X miles, and the total cost is $Y, then we can get:

Plan I: Y=38+0.11X

Plan II: Y=49+0.07X

When both plans cost the same, 38+0.11X=49+0.07X. We will get X = 275miles, and Y=$68.25

Step-by-step explanation:

Answer:

I really hope this help! Some may call it front end rounding while others call is front end estimating, even though they mean the same thing. When rounding a place value, you need to look to the number to the right of it. Example: Most often a teacher may as you round the number 452 to the nearest ten’s. That number will than be 450. But why? Well as we look at the number, we know we need to round to the nearest ten. So in our case it would be 52. Our rule to remember when rounding is 5 and higher we round-up. Since we are looking at the portion of the number 52, we go right of the tens place to find the number 2. Since the number 2 is not 5 or higher, we round down making it 50. Don’t forget to finish the problem by adding the hundreds back to the original number. Your answer for this problem is 450.

Step-by-step explanation: I really hope this helps i will post the rest in the comment!

Answer:

9+2b

Step-by-step explanation:

add like terms

Answer:

28+14.50+524.50+13.25=  580.25

Step-by-step explanation:

Add it all together.

The expression that represents the total cost for both the membership after m months is

552.50 + 27.75m

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Internet service:

Charges = $28

Monthly pay = $14.50

Total cost after m months.

= 28 + 14.50m

Movie streaming:

Joining = $524.50

Monthly charge = $13.25

Total cost after m months.

= 524.50+ 13.25m

The total cost for both memberships after m months.

= 28 + 14.50m + 524.50 + 13.25m

=  552.50 + 27.75m

Thus,

The total cost is 552.50 + 27.75m.

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Answer:

6.125

Step-by-step explanation:

1/8 is half of 1/4.

1/4 is 0.25

0.25 / 2 = 0.125

6 + 0.125 = 6.125

The mixed fraction 6 1/8 as a decimal form is 6.125.

The correct option is C.

To convert the mixed number 6 1/8 to a decimal, you can follow these steps:

Step 1: Multiply the whole number (6) by the denominator (8): 6 × 8 = 48.

Step 2: Add the numerator (1) to the result from step 1: 48 + 1 = 49.

Step 3: Write the sum from step 2 as the numerator over the original denominator: 49/8.

Step 4: Divide the numerator (49) by the denominator (8): 49 ÷ 8 = 6.125.

Therefore, 6 1/8 as a decimal is 6.125.

The decimal form of a mixed number represents the sum of the whole number and the fraction converted to decimal form. In this case, 6 represents the whole number part, and 1/8 represents the fraction part. By performing the division, you find that the fraction 1/8 is equivalent to the decimal 0.125. Adding this decimal to the whole number 6 gives the final result of 6.125.

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Answer:

r equals negative 12

Step-by-step explanation:

Answer:

There's no picture attached

Step-by-step explanation:

Answer: 5/2

Step-by-step explanation:

Answer:

5/2

Step-by-step explanation:

for khan

Answer:

Step-by-step explanation:

What is the equation?

You need to replace all A with 3 and all c with 12. If I had the equation, I'd be glad to help further.

For the given values a=3 and c=12 the required expression is 4a-c=0.

An equation is a combination of different variables, in which two mathematical expressions are equal to each other.

Given that,

The value of a = 3         (1)

And the value of c = 12       (2)

To determine the expression,

divide equation (1) and equation (2),

a/c = (3/12)

⇒a/c = 1/4

⇒4a=c

⇒4a-c = 0

The required expression is 4a-c=0.

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Answer:

7th grade has 1100 and 8th has 75

Step-by-step explanation:

here's why...........1100 plus 75 is the total of 1175