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2 years ago

What is 500-10x80+60 equal??

Mathematics

2 answers:

Sholpan [36]2 years ago

5 0

Answer:

-240

Step-by-step explanation:

500 - 800 + 60

= -300 + 60 = -240

marysya [2.9K]2 years ago

5 0

Answer:

-240

Step-by-step explanation:

-10*80=-800

-800+60=-740

500-740=_240

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Salazar is driving 70 miles per hour. At this rate, how long will it take for him to travel 840 miles?

Kisachek [45]

Answer:

12 hours

Step-by-step explanation:

Step 1:

70 : 1 Ratio

Step 2:

70 : 1 = 840 : x Equation

Step 3:

840 = 70x Multiply

Step 4:

x = 840 ÷ 70 Divide

Answer:

12 hours

Hope This Helps :)

4 0

3 years ago

James surveyed people at school and asked whether they bring their lunch to school or buy their lunch at school more often. The

Brrunno [24]

Answer:

The correct option is 4.

Step-by-step explanation:

Given information:

Bring lunch : 46 males, 254 females

Buy lunch : 176 males, 264 females

Total number of peoples is

$46+254+176+264=740$

Total number of males is

$46+176=222$

The probability of male is

$P(Male)=\frac{Males}{Total}=\frac{222}{740} =0.3$

Since probability of males is 0.3, therefore options A and C are incorrect.

Total number of persons who buys lunch is

$176+264=440$

The probability of persons who buys lunch is

$P(\text{Buys lunch})=\frac{\text{Buys lunch}}{Total}=\frac{440}{740} =\frac{22}{37}$

We need to find the probability of P(male | buys lunch).

According to the conditional probability, we get

$P(\frac{A}{B})=\frac{P(A\cap B)}{P(B)}$

P(male | buys lunch) $=\frac{P(\text{male }\cap \text{ buys lunch})}{P(\text{buys lunch})}$

P(male | buys lunch) $=\frac{\frac{176}{740}}{\frac{22}{37}}$

P(male | buys lunch) $=\frac{2}{5}=0.4$

Therefore the correct option is 4.

8 0

3 years ago

Read 2 more answers

Find value of x of question number F

a_sh-v [17]

Answer:

X=17

Step-by-step explanation:

AC^2=AB^2 +BC^2(PYTHAGOREAN THEORM)

100=64 +BC^2

36=BC^2

6CM=BC

AD^2=AB^2+BD^2(PYTHAGOREAN THEORM)

X^2 =64+225

X^2=289

X=17

6 0

2 years ago

Three is no less than a number x<br> .

Pie

Step-by-step explanation:

if three(3) is not less than x, this means it's more than x so it'll be 3+x

5 0

2 years ago

Smith can pick 115 strawberries in 5 minutes. How many strawberries can he pick per one minute?

defon

Answer:

Step-by-step explanation:

1) to find the difference you hve to to divide the amount of strawberries by 5, to see how many he picked in 1 minute

Therefore: 115/5 = 23

Aka, Smith picked/ can pick 23 strawberries per minute :)

Have an amazing day!

6 0

2 years ago