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3 years ago

Please help and don’t put no link pls

Mathematics

1 answer:

myrzilka [38]3 years ago

4 0

Answer:

59 cm^2

Step-by-step explanation:

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5x-4y=19<br> x+2y=8<br> solve the simaltaneous equation

STatiana [176]

Answer:

( 5, 3/2 )

x = 5

y = 3/2

Step-by-step explanation:

5x - 4y = 19

x + 2y = 8

-------------------

2(x + 2y = 8) = 2x + 4y = 16

----------------------

5x - 4y = 19

2x + 4y = 16

7x = 35

÷7 ÷7

x = 5

-----------------------

x + 2y = 8

5 + 2y = 8

-5 -5

2y = 3

÷2 ÷2

y = ( 3/2 )

I hope this helps!

8 0

2 years ago

If x=5.25, what is the value of f(x)=10x+8

Nataly_w [17]

Answer:

$f(x) = 10x + 8 \\ f(5.25) = 10(5.25) + 8 \\ f(5.25) = 52.5 + 8 \\ f(5.25) = 60.5$

8 0

3 years ago

The sum of nine times a number and five is one hundred eighty-five

tangare [24]

Answer:

9 x (x +5) = 185

Step-by-step explanation:

I'm pretty sure this is how you write it

4 0

3 years ago

Read 2 more answers

If a woman takes an early pregnancy test, she will either test positive, meaning that the test says she is pregnant, or test neg

k0ka [10]

Answer:

0.0098

Step-by-step explanation:

Probability of being pregnant:100/1000

=1/10.

98% chance:=98/100 ×1/10

=98/1000

Therefore the probability that she really is pregnant is: 0.098

3 0

3 years ago

Evaluate the expression. 5 x (-6 / -1 + -10)

kotykmax [81]

Answer:

-20

Step-by-step explanation:

$5 * (-6 / -1+ -10)$

According to PEMDAS, we need to do the math in the parentheses first.

$-6 / -1 + -10$

Applying PEMDAS to the inside of the parentheses, then we have to divide -6 by -1, where we would get 6.

$6 + -10$

Adding a negative is the same as subtracting, so adding negative 10 is the same as subtracting 10.

$6 - 10$

Subtracting, we get 6 - 10 = -4 and we're left with:

$5 * (-4)$

Multiplying, <u>our final answer is -20.</u>

Hope this helps!

8 0

2 years ago