1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stich3 [128]
3 years ago
8

5x - y ÷ 8 when x = 5 and y = 8

Mathematics
2 answers:
stiks02 [169]3 years ago
6 0

Answer:

24

Step-by-step explanation:

5x - y ÷ 8

Let x=5 and y=8

5(5) -8÷8

PEMDAS

multiply and divide from left to right

25 -8÷8

25 -1

Then add and subtract

24

pav-90 [236]3 years ago
3 0

<u>24</u>

<u>Step-by-step explanation:</u>

<u>First I replaced x and y so the equation was:</u>

<u />

<u>5(5)-8/8</u>

<u>multiply 5*5</u>

<u>25-8/8</u>

<u>25-1</u>

<u>When you subtract the answer is 24</u>

<u>And I solved this equation using PEMDAS!</u>

<u>Hope that helps!!</u>

You might be interested in
There are 17 students on the bus and 22 adults. What is the ratio of students to total?​
german

Answer:

17:39

Step-by-step explanation:

17+22= 39

total students 17

so 17:39

hope it helps!

6 0
3 years ago
Read 2 more answers
Reflect the point (7,0) across the y-axis
stiks02 [169]

A(7,0)\Longrightarrow\boxed{A'(-7,0)}

Hope this helps.

r3t40

3 0
4 years ago
Read 2 more answers
The area of a photograph is 35 square inches. Its length is two inches longer than its width. Find the length and width of
devlian [24]

Answer:

length is  7 inches and the width is 5 inches

Step-by-step explanation:

Hello, I think I can help you with this

the area of a rectangle is given by:

(equation1)Area=length * width\\

Step 1

According to the question data,the  length is two inches longer than its width.which means that you can take the width and add 2 inches to obtain the length, in mathematical terms

(equation 2)Width + 2 inches = length

Step 2

Now, put equation 2 into equation 1

Area=length * width\\Area=(width + 2 )*width\\Area=width^{2}+2widht\\Let\ width=w

Step 3

replace and solve for w

Let

A=35

A=35\\Area=w^{2} +2w\\35=w^{2} +2w\\w^{2} +2w-35=0\\use\ quadratic\ formula\ to\ solve\\if\\ax^{2} +bx+c=0\\x=\frac{-b +- \sqrt[2]{b^{2}4ac } }{2a}\\ +- means\ there\ are\ 2\ solutions, we\ will\ take\ the\ positive\ one, because\ it\ is\ a\ distance.\\Now, replacing\\a=1,b=2,c=35\\\\w=\frac{-2 + \sqrt[2]{2^{2}-4*1*-35 }  }{2*1}\\w=\frac{-2 + \sqrt[2]{4+140}  }{2}\\w=\frac{-2+\sqrt{144} }{2} \\w=\frac{-2+12}{2}\\w=\frac{10}{2}\\w=5

so, the width is 5 inches,

replacing this value in equation 2

Width + 2 inches = length

5 in +2 in =length

7 in = length

so , the length is 7 inches

Have a good day.

4 0
3 years ago
Can y’all please help me answer these questions
mario62 [17]

Step-by-step explanation:

4.

⇒ V = \pi r^{2}h

⇒ V = \pi(10)^{2}(40)

⇒ V = 4000\pi

⇒ V = 12566.4cm^{3}

5.

⇒ V = \frac{1}{3}\pi r^{2}h

⇒ V = \frac{1}{3}\pi (8)^{2}(h)

As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height.

⇒ a^{2} + b^{2} = c^{2}

⇒ (8)^{2} + h^{2} = 20^{2}

⇒ h = \sqrt{20^{2} - 8^{2}}

⇒ h = 4\sqrt{21}

Now substitute this into the volume formula.

⇒ V = \frac{1}{3}\pi (8)^{2}(4\sqrt{21})

⇒ V = \frac{256\sqrt{21} }{3}\pi

⇒ V = 1228.5mm^{3}

6.

⇒ V = l^{3}

⇒ V = (3.1)^{3}

⇒ V = 29.8inches^{3}

7.

⇒ V = \frac{1}{3}lwh

⇒ V = \frac{1}{3}(12)(4)(6)

⇒ V = 96inches^{3}

6 0
3 years ago
Read 2 more answers
Tutorial Charlie is planning a trip to Madrid. He starts with $984.20 in his savings account and uses $381.80 to buy his plane t
Illusion [34]

Answer:

$150.60

Step-by-step explanation:

$984.20-$381.80= $602.40

Take $602.40 and divide by 4 which equals $150.60 which is the 1/4 $ Charlie has in his savings account.

6 0
3 years ago
Other questions:
  • What Is The Next Step In This Construction?
    5·2 answers
  • Subtract: 7 9/16 - 4 2/4<br> A.3 7/12<br> B.3 1/16<br> C.3 7/20<br> D.3 11/12
    14·1 answer
  • What is the product of 72 x 0.45​
    9·2 answers
  • Solve for x<br><br> a. <br><br> b. <br><br> Will mark brainliest!
    5·1 answer
  • What is 700* 508 * 667 = <br> How life??
    7·2 answers
  • Help PLZ
    6·1 answer
  • Plss help me as soon as possible i will give you lots of points
    15·1 answer
  • A school had 180 boys and 240 girls attending
    15·1 answer
  • Tristan has found a good job as a bookkeeping clerk after finishing his associates degree at the local community college. He is
    15·1 answer
  • Which function has a minimum of -4?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!