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Amanda [17]
3 years ago
5

A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin

? (Hint: Solve for X).
Mathematics
1 answer:
aleksandrvk [35]3 years ago
6 0
3/5=2000/x
10,000/3x=3x/3x
x=3333.33
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If 6 tomatoes are for $4, how much does 15 tomatoes cost?
Mariana [72]
$22.50 is the cost of 15 tomatoes
3 0
3 years ago
Ann increased the quantities of all the ingredients in a recipe by 60\%60%60, percent. She used 808080 grams (\text{g})(g)left p
kari74 [83]

Answer:

50 grams

Step-by-step explanation:

Let the amount of cheese required by the recipe be "x"

Ann increased 60% from original amount and then used up 80 grams. Thus:

<em>Original, increased by 60%, became 80</em>

<em />

This translated to algebraic equation would be:

x + 0.6x = 80

<u>Note:</u>  60% = 60/100 = 0.6

So we can solve the above equation for "x" and get our answer. Shown below:

x + 0.6x = 80\\1.6x=80\\x=\frac{80}{1.6}\\x=50

Hence,

the recipe required 50 grams of cheese

6 0
3 years ago
Plzzzzz help i'm in desprate need of help with this
Ainat [17]

Answer:

Obtuse

Step-by-step explanation:

Right = has angle measure of 90°

Acute = has angle measure less than 90°

Equilateral = 2 or more angles whose angle measures are congruent to others

Circle = measures 360°

<u>Obtuse = Angle measure greater than 90° and less than 180°</u>

Hope this helps!

5 0
3 years ago
A company has developed a new ink-jet cartridge for its printer that it believes has a longer life-time on average than the one
Mila [183]

Answer:

The test hypothesis is :

H_0: \mu=1502.5\\ H_a: \mu>1502.5

Step-by-step explanation:

Consider the provided information.

Null hypothesis refer the population parameter is equal to the claimed value.

If there is no statistical significance in the test then it is know as the null which is denoted by H_0, otherwise it is known as alternative hypothesis which denoted by H_a.

The historical average lifetime for cartridges produced by the current process is 1502.5 pages.

Hence, the test hypothesis is :

H_0: \mu=1502.5\\ H_a: \mu>1502.5

6 0
3 years ago
Can someone solve this please?
goblinko [34]

Step-by-step explanation:

By Linear Pair Theorem,

110⁰ + 5x⁰ = 180⁰

5x⁰ = 70⁰ ------- (1)

x⁰ = 14⁰

We know that adding the angles of the triangle lying on the same side, equals the opposite exterior angle, i.e.,

5x⁰ + 40⁰ = 2y⁰

From 1,

70⁰ + 40⁰ = 2y⁰

110⁰ = 2y⁰

y⁰ = 55⁰

<em>Hope it helps :)</em>

7 0
3 years ago
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