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bezimeni [28]
3 years ago
8

Question 10(Multiple Choice Worth 5 points)

Mathematics
1 answer:
Zinaida [17]3 years ago
5 0
The answer is D. 2b+7
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To decrease an amount by 4% what single multiplier would u use ??
serg [7]

If you decrease something by 4 percent,

you are  keeping (100% - 4%) or 96% of the original

so multiply by the original amount by 96 percent or .96


If you have 100 pennies, and you  give 4 away ( 4 percent decrease), you still have 96 pennies.  You are keeping 96 percent of what you started with.  This works no matter how much you start with.


Example:


you have 40 dollars

4% decrease

40 * .04 =  1.6 take this away

40 - 1.6 = 38.4 left

you keep 96 percent

40 * .96 = 38.4 left

3 0
2 years ago
Read 2 more answers
Please help what’s 6,7,8.
Nikitich [7]

Answer: 7 is 1/8, 8 is 2/8 or 1/4

Step-by-step explanation:

7 0
3 years ago
What is 110y+10=340 for algebra grade 7
algol [13]
<span> 110y+10=340

Subtract 10 from both sides 

110y=330 

Divide by 110 to get variable on its own 

</span>110y/110=330/110

y=3
7 0
3 years ago
Read 2 more answers
Drag an expression to the box to create an equation with NO solutions.
irina [24]
The answer will be the last one as it equals 4x + 3. this means that the equation will be parallel and does not have a solution.
7 0
3 years ago
In a city school, 70% of students have blue eyes, 45% have dark hair, and 30% have blue eyes and dark hair. What is the probabil
Travka [436]

<u>Answer:</u>

The correct answer option is 43%.

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

We are given that 70% of students have blue eyes, 45% have dark hair, and 30% have blue eyes and dark hair.

We are to find the probability of a student getting selected will have dark hair with blue eyes.

P(D|B) = P(D∩B) / P(B)

Substituting the given values in it to get:

P(D|B) = 0.3 / 0.7 = 0.428

Rounding it to the nearest whole percent we get:

0.428 × 100 = 42.8% ≈ 43%

4 0
3 years ago
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