Mathematics High School

System OT
W + b =13
6.5w + 2b = 57.5

Answers

Answer 1

Answer:   w = 7,  x = 6

Step-by-step explanation:  Solve by substitution

W + b = 13

rewrite as   b = 13 - w  and substitute that value for b in the second equation

6.5w + 2b = 57.5  Then solve for w

6.5w + 2(13-w) = 57.5 . Distribute

6.5w + 26 - 2w = 57.5 .  Subtract 26 from both sides. Combine like terms and simplify

6.5w - 2w = 57.5 - 26

4.5w = 31.5  Divide both sides by 4.65

w = 7 . Substitute 7 for w in the first equation and solve for b

7 + b = 13 . Subtract 7 from both sides

b = 6

Related Questions

Help! Need answers fast!
giving 20 points!
Find the product of ( 2x^2 − 4x + 3 ) ( 3x + 6 ) using the box method shown below. What will the monomial be in the box marked with a B?

Select one:
a. - 12x 2
b. - x 2
c. - x
d. - 12x

Answers

Answer:

It should be A. -12^2

Step-by-step explanation:

Looking at the box B, you have to multiple 3x and -4x. 3 * -4 is -12 and the two x's become squared. Making your answer -12x^2

A.) -12x^2
I’m pretty sure that’s it

PLZ HELP!!!

Carmen enters a painting in an art contest. The contest rules say that all paintings must be rectangular with an area no greater than 3,003.84 cm2 . Carmen's painting is 16 cm wide.

What is the greatest length the painting can have and still have an area within the contest rules?

Answers

Answer:

[tex]187.74\:\mathrm{cm}[/tex]

Step-by-step explanation:

The area of a rectangle is given by [tex]l\cdot w[/tex]. Therefore, we can set up the following inequality:

[tex]l\cdot 16 \leq 3,003.84[/tex].

Solving this inequality, we have:

[tex]l \leq 187.74[/tex].

Therefore, the largest length Carmen's painting can be is [tex]\fbox{$187.74\:\mathrm{cm}$}[/tex].

a clock loses 20 seconds every hour, how many seconds will it lose in one day?​

Answers

Answer:

480 seconds per day

Step-by-step explanation:

There are 24 hours in a day, 24*20=480 seconds per day

The number of seconds the given clock loses in a day is required.

The number of seconds lost by the clock in one day is 240 seconds.

Algebra

The clock loses 20 seconds every hour.

A day has 24 hours.

If 20 seconds is lost every hour then the 20 seconds has to be added 24 times or the 20 has to be multiplied by 24.

So,

[tex]20\times 24=480\ \text{s}[/tex]

Learn more about algebra:

https://brainly.com/question/6143254

simplify
[tex](3x ^{2} ) ^{3} [/tex]
this is it ​

Answers

First two are the explanation and the last one is the answer :)

Which is a like radical to 3sqrt54 after simplifying?​

Answers

Answer:

Step-by-step explanation:

r4345456r776i7o7865

Answer:

[tex]\sqrt[3]{54}[/tex] = 3 [tex]\sqrt[3]{2}[/tex]

Step-by-step explanation:

this is the radical after simplifying

can someone help me with 26 and 27?

Answers

Answer:

B

Step-by-step explanation:

Last year, 11 students tried out for the
debating team. This year 15 students tried
out. What was the percent of increase in the
number of students who tried out?

Answers

136% increase I think

anybody know this one

Answers

It’s gonna be the second option:)
the answer is the second one!

Derek is selecting a sock from his drawer .He chooses a sock at random and then selects a second sock at random .what is the probability that Derek selected a striped sock both times

Answers

Answer: 1/15

Step-by-step explanation:

The number of striped socks is 2 while the number of total socks are 6. If he chooses a striped socks at first, that will be 2/6.

If he chooses it the second time, the probability will be 1/5 since there'll be 5 socks left and 1 striped.

The probability that Derek selected a striped sock both times will be:

= 2/6 × 1/5.

= 2/30

= 1/15

PLS I NEED HELP ASAP!! WILL GIVE BRAINLIEST

Answers

Answer:

x over 2

Step-by-step explanation:

A recipe needs 1/2 teaspoon of vanilla for every 2 1/2 cups of sugar. If you plan to use 5 cups of sugar, how much vanilla will you need?

Answers

The answer would be 1 teaspoon
Answer

The answer would be 1 teaspoon

Learned this in math

Pls give me BRAINLIEST


Find the value of X, Y, Z

Answers

Answer:

Answers are in photo

Step-by-step explanation:

Do it in terms of ratio

Find the area of the shape. 8

Answers

so the answer is in the picture

but once i show it i would like a crown for it :)

The area of the shape is 16pi units[tex]\\^{2} \\[/tex]

The areas of similar triangles ΔABC and ΔDEF are equal. If the longest side of ΔDEF measures 25 units, what is the length of the longest side of ΔABC?

A.
5 units

B.
25 units

C.
75 units

D.
50 units

Answers

Answer:

It is 25 units

Step-by-step explanation:

The triangles are equal

Answer:

25 Units.

Step-by-step explanation:

The Triangles are equal and have the same area. Therefore, the longest side of ΔDEF and ΔABC will measure the same.

how do I solve the symptoms of linear equations by substitution
2x-y=23
x-9=-1​

Answers

Answer:

x = 8, y = -7

in coordinate form: (8,-7)

Step-by-step explanation:

first, find x using the second equation:

x - 9 = -1

add 9 to both sides of the equation

x - 9 + 9 = - 1 + 9

x = -1 + 9

x = 8

next, substitute x for 8 in the first equation:

2x - y = 23

2 * 8 - y = 23

16 - y = 23

16 - y + y = 23 + y

16 = 23 + y

16 - 23 = y

y = -7

also, I had this exact question on an assignment earlier today ahah

Yes!! the person above got the correct answer!! hope you have an awesome day!!

50 points! Will mark brainliest! Pic is attached below :)

Answers

Answer:

you have nothing attached

Answer:

Perpendicular

Step-by-step explanation:

I calculated and its correct from p

I need help please please

Answers

Answer:

60%

Step-by-step explanation:

I NEED HELP


I don’t know what to do!!

Answers

1.C
2.A
3.d
4.B


Hope this helps!
Brainliest?
Is okay if no !

Dividing with remainders
Tia is planting her garden with 15 plants. She wants them
planted in equal groups of 4. How many groups of 4 can she
make? How many plants will she have left over?

Answers

Answer:

im not sure but i think 3

Step-by-step explanation:

Which equation matches the graph?

In the xy graph, the range of both axes is minus four to four by increment of one. On both axes every alternate tick marks are labeled. The line on the graph passes through the points (0, -1) and (-1, 3).

A. y = 3x – 8
B. y = –2x + 1
C. y = –4x – 1
D. y = 2x – 5

Answers

Answer:

Step-by-step explanation:

we can easily find this by looking at our y intercept

our y intercept here is (0, -1) so the equation who has -1 as a constant is the one were looking for

so C would be oour answer since its the only one with -1 as its constant

hope this helps <3

Original price of a kitten: $145.00
Discount: 11%
What is the selling price

Answers

Answer:

129.05 is your answer.

Step-by-step explanation: Final price: $129.05

Saved amount: $15.95

A publishing company creates a book for young children. To find the number of pictures on the page, the book says to multiply the page number by 2 and add 3.


Which would best complete the pattern?
A. 4 x 2 = 8, 8 + 3 = 11, 11
B. 4 + 2 = 6, 6 + 4 = 10, 10
C. 4 = 2, 2 + 6 = 8, 8

Answers

Answer:

A

Step-by-step explanation:

A is the only choice that has all of the steps and in order.

Answer:

sdfg

Step-by-step explanation:

xcvbn

4) 1, -4, 16, -64, 256, ...
A) -3125, 15625, -78125
C) -32, 64, -128
B) 243, 729, 2187
D) -1024, 4096, -16384

Answers

Answer:

D) -1024, 4096,- 16384

h=(500-260)divided by 2

Answers

Answer:

h = 120

Step-by-step explanation:

The required, division of h=(500-260)divided by 2 is 120..

The division is a mathematical operation that involves distributing or sharing a quantity into equal parts. It is the inverse operation of multiplication. In division, a dividend is divided by a divisor to obtain a quotient.

h = (500 - 260) divided by 2

To solve this expression, we first perform the subtraction within the parentheses:

h = (240) / 2

Simplifying further:

h = 120

Therefore, the value of h is 120.

Learn more about division here:

https://brainly.com/question/9934431

#SPJ6

A hexagon can be divided into 4 non-overlapping triangles. Which is the sum of the interior angles of a hexagon?
A) 180°
B) 540°
C) 720°
D) 1440°​

Answers

Answer:

B

Step-by-step explanation:

Select the correct answer.
What is the missing side length in this right triangle?

Answers

Answer:

15

Step-by-step explanation:

It's a right angle triangle so we can use the pythogorean theorem to solve for Hypotenuse

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

So if we apply this formula,

[tex] {9}^{2} + {12}^{2} = {c}^{2} [/tex]

[tex]81 + 144 = {c}^{2} [/tex]

[tex]225 = {c}^{2} [/tex]

[tex]c = \sqrt{225} [/tex]

[tex]c = 15[/tex]

Hope this helps :)

Okay first off you need to use the Pythagorean Theorem Equation:

a^2 + b^2 = c^2

Now since we know a = 9, and b = 12 we can plug those in :)

9^2 + 12^2 = c^2

Remember 9^2 = 81, 12^2 = 144

81 + 144 = c^2

Now add those together m

225 = c^2

Now we need to square root both sides to get rid of the power of 2

square root(225) = square root(c^2)

So the answer is ——> c = 15

Slope:
Y-Intercept:
Equation:

Answers

Slope: 3/2.
Y intercept: -3
Equation: Y=3/2x-3

c) Write the equation in factored form. The equation is y= x^2 - 8x - 20 // Need answer ASAP

Answers

The first term will be an x because

x squared breaks down as x times x.

First look for factors of your constant that add to your

coefficient of the middle term in the trinomial.

Also note that the constant is negative and a negative

factors as the product of a positive and a negative.

The factors of -20 that add to -8 are -10 and +2.

So we have y = (x - 10)(x + 2).

URGENT PLEASE HELP Enter the value of (1/2) (-8) (4). Use the on-screen keyboard to enter the value in the box below.

Answers

Answer:-16

Step-by-step explanation:

-16 bc it is what it is

HELP! (On the ?’s I didn’t answer thank you!

Answers

for b the answer is that the visitors most likely start rising because either the weather is better or students are off from break or on vacation
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