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2 years ago

What is the answer to -10(x+4)+42=-19-19

Mathematics

2 answers:

BartSMP [9]2 years ago

6 0

Answer:

x=4

Step-by-step explanation:

lapo4ka [179]2 years ago

6 0

I hope it will help u...

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What is the mass (in grams) of 8.11×1026 CO2 molecules?

Kobotan [32]

Answer:

It is 59,275.74 grams

Step-by-step explanation:

• Molecular mass of carbon dioxide

$= (12 \times 1) + (16 \times 2) \\ = 12 + 32 \\ = 44 \: g$

[ molar masses: C = 12 g, O = 16 g ]

• From avogadro's number, it says 1 mole contains 6.02 × 10^23 molecules or atoms.

But 1 mole is equivalent to its molar mass in terms of weight, therefore;

${ \sf{6.02 \times {10}^{23} \: molecules = 44 \: g }}\\ { \sf{8.11 \times {10}^{26} \: molecules =( \frac{8.11 \times {10}^{26} }{6.02 \times {10}^{23} } \times 44) \: g}} \\ \\ = { \boxed{ \boxed{ \bf{59275.7 \: \: g}}}}$

6 0

2 years ago

Can u Simplify this problem???!? 3t-7t+14t

sleet_krkn [62]

Come on now, Tayala !

What if I say to you:
"Start with 3 cows, take away 7 cows, and then add 14 cows. How many are there ?"

Don't let the little 't' scare you. It doesn't matter one bit what 't' really is. It can be
a number, a teacher, a tiger, or a teacup. Whatever it is, you start with 3 of them,
take away 7 of them, and then add on 14 of them. How many are there ?

Hint: If there are not ten of them, then go back and look at the cows again.

7 0

2 years ago

Read 2 more answers

A discount voucher offering 15% off is used to pay a bill.After using the voucher, the bill is reduced to ?36.72.How much was th

Aleonysh [2.5K]

Answer:

$43.20

Step-by-step explanation:

To find the original purchase price, write a proportion and solve. A proportion is an equation where two ratios are set equal.

If the discount if 15% then you pay 85%.

$\frac{36.72}{y}= \frac{85}{100}$

To solve for y, cross multiply the numerator and denominator of each fraction.

36.72(100) = 85y

3672= 85y

43.2 = y

5 0

3 years ago

A camera costs 115 Canadian Dollars. If each Canadian dollar is worth 0.952 U.S Dollars, how much would the camera cost in U.S D

PIT_PIT [208]

This is truly a simple, one-step equation if looked at in the right angle.

You're going to want to multiply 115 by .952:

115
 x .952
 230
+ 6050
+ 93500
 109.48

$109.48 is your final answer.

6 0

2 years ago

You are taking a multiple-choice test that has 44 questions. each of the questions has 55 answer choices, with one correct ans

Aleks [24]

Since there are 55 choices, we have to have 55 options, and for 44 questions, we multiply how many options there are in 1 question by 44 to get 55*44=2420

6 0

3 years ago