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3 years ago

I really need help with this question

Mathematics

1 answer:

yan [13]3 years ago

3 0

Answer:

where is it at

Step-by-step explanation:

sheeeeeeesh

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Please help me please will give brainliest to anyone who is good show your work

const2013 [10]

Answer:

Step-by-step explanation:

$\frac{2 \frac{1}{2} }{\frac{2}{5} } = \frac{2\frac{1}{2} }{2} times 5$

1 1/4 × 5 = 6 1/4

3 0

3 years ago

What is a simplified eCarlotta thinks that 3y + 5y3 is the same as 8y4. Which statement shows that it is NOT the same?Xpression

stira [4]

Questions:

(a) What is a simplified expression for (x + y) – (x – y)?

(b) Carlotta thinks that $3y + 5y^3$ is the same as $8y^4$ . Which statement shows that it is NOT the same?

Answer:

$(x + y) - (x - y) =2y$

$3y + 5y^3 \ne 8y^4$

Step-by-step explanation:

Solving (a):

Given

$(x + y) - (x - y)$

Required

Simplify

$(x + y) - (x - y)$

Open brackets

$(x + y) - (x - y) = x + y - x + y$

Collect Like Terms

$(x + y) - (x - y) = x - x+ y + y$

$(x + y) - (x - y) = y + y$

$(x + y) - (x - y) =2y$

Solving (b):

Given

$3y + 5y^3$ and $8y^4$

Required

Which expression shows they are not the same

The expression that shows this is:

$3y + 5y^3 \ne 8y^4$

Take for instance; y=2

Substitute 2 for y in $3y + 5y^3 \ne 8y^4$

$3*2 + 5*2^3 \ne 8*2^4$

Evaluate all exponents

$9 + 5*8 \ne 8*16$

$9 + 40 \ne 128$

$49 \ne 128$

The above expression supports $3y + 5y^3 \ne 8y^4$

5 0

3 years ago

HELLPPPPP!! i need help with this taking a test

vivado [14]

Answer:

$trapezoid$

Hope help

Pls mark brainliest if it is a right answer

3 0

3 years ago

Ed bought a fancy bottle of mustard that holds 8.5 ounces. Ed puts about 1/25 of the mustard on each hot dog he eats. How much o

zvonat [6]

Mustard capacity=8.5 ounces
1/25 x 7= 0.28
how much is left in the bottle after he eats 7 hot dogs
is 8.5 minus 0.28 which is 8.22 ounces left in the bottle

7 0

3 years ago

Read 2 more answers

CHECK MY ANSWERS ASAP

AlexFokin [52]

Question 1:

For this case we must rewrite the following equation:

$-3x + y = 5$

If we add 3x to both sides of the equation we have:

$y = 5 + 3x$

Thus, we have that an equivalent expression is option C.

Answer:

Option C

$y = 5 + 3x$

Question 2:

For this case we must solve the following equation:

$-5x + 5 = -40$

Subtracting 5 from both sides of the equation we have:

$-5x = -40-5\\-5x = -45$

Dividing between -5 on both sides of the equation we have:

$x = \frac {-45} {- 5}\\x = 9$

Answer:

Option B

7 0

3 years ago