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3 years ago

1 1/3 x 3/5 and simplify

Mathematics

1 answer:

ser-zykov [4K]3 years ago

8 0

Answer:

4/5

Step-by-step explanation:

1 1/3 = 4/3

4/3 x 3/5

times the denominator and numerator = 12/15

divide by HCF which is 3

4/5

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What number is represented by 4x²+17x+2 if x=10?

Fynjy0 [20]

Answer:

at x = 10, $4x^{2} + 17x + 2 = 572$

Step-by-step explanation:

The given equation is $4x^{2} + 17x + 2$

Here, lets substitute the value of x = 10

So, the equation simplifies to ,

$4 \times (10)^{2} + 17(10) + 2$

= (4 x 100) + 170 + 2 = 400 + 170 + 2

= 572

So, at x = 10, $4x^{2} + 17x + 2 = 572$

4 0

3 years ago

Charlie can type faster than any of his classmates. He took a test that showed he can type 700 words in 5 minutes (WPM). The fas

BartSMP [9]

Answer: B

Step-by-step explanation:

If you divide the word by minutes for each one you get 216 which is for the record speed and if you divided how fast Charlie typed it would be 140 which mean that Charlie types slower then the record speed

6 0

4 years ago

Read 2 more answers

If the producer in a food chain has 1000 kcal of energy available, how much energy would each of the consumers have?

madam [21]

Answer:

Primary consumer = 100kcal

Secondary consumer = 10kcal

Tertiary consumer = 1kcal

Step-by-step explanation:

In a food chain, transfer of energy occurs when one organism feeds on another organism. However, only 10% of energy is transferred from one organism to another because energy is lost as heat when the organisms perform metabolism.

In a typical food chain consisting of a producer, a primary (1st), secondary (2nd) and tertiary (3rd) consumer, if there are 1000 kcal of energy available in the producer, then:

- Primary consumer will obtain; 10% of 1000Kcal

10/100 × 1000

Primary consumer = 100kcal of energy.

- Secondary consumer will obtain as follows; 10% of 100kcal available energy

= 10/100 × 100

Secondary consumer = 10Kcal of energy.

- Tertiary consumer will obtain as follows; 10% of 10Kcal of available energy.

= 10/100 × 10

Tertiary consumer = 1 kcal of energy.

6 0

3 years ago

What subfield of mathematics requires the most spatial reasoning?

Vlad1618 [11]

Answer:

brainlest?

Step-by-step explanation:

......

5 0

3 years ago

Read 2 more answers

A jeweler wants to make 8 grams of a mixture that is 75% gold. She has an alloy that is 90% gold and an alloy that is 50% gold.

Alisiya [41]

Answer: The dealer should use 5 grams of alloy that is 90% gold and a3 grams of alloy that is 50% gold.

Step-by-step explanation:

Let x be the weight of alloy having 90% gold and y be the weight of alloy having 50% gold .

Given : A jeweler wants to make 8 grams of a mixture that is 75% gold. She has an alloy that is 90% gold and an alloy that is 50% gold.

According to the above statement , we have the following system of equations :-

$\text{Total weight of mixture }: x+y=8-----------------(1)\\\\\text{proportion of gold in mixture}: \dfrac{0.90x+0.50y}{8}=0.75\\\\=0.90x+0.50y=6--------------------(2)$

Multiply 2 on both the sides of equation (2), we get

$1.8x+y=12--------------(3)$

Subtract eqn (1) from eqn (3), we get

$0.8x=4\\\\\ \Rightarrow\ x=\dfrac{4}{0.8}=5$

Put value of x=5 in (1), we get

$5+y=8\\\\ \Rightarrow\ y=8-5=3$

Hence, the dealer should use 5 grams of alloy that is 90% gold and 3 grams of alloy that is 50% gold.

4 0

4 years ago