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3 years ago

Help I will be marking brainliest!!!

Mathematics

1 answer:

kozerog [31]3 years ago

3 0

Answer:

if I can help u I think its 63.0

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A fisherman can row upstream at 5 mph and downstream at 10 mph. He started rowing upstream until he got tired and then rowed dow

goblinko [34]

Answer:

We have been given that the upstream speed is and the down stream speed is .

Let the fisherman traveled a distance of x miles.

The total time of the trip is 6 hours.

Relations between speed (s), time (t) and distance (d) is

Hence,

Time upstream + time downstream = 6

lcm = 10

Cross multiplying,

x = 20 miles .. Answer.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Help please.......Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.

maxonik [38]

<u>Answer:</u>

The cost of 1 dozen doughnut is $6 and the cost of a dozen croissant is $10.

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

D = Cost of a dozen doughnut
C = Cost of a dozen croissant
10D + 7C = 130
6D + 4C = 76

10D + 7C = 130

6D + 4C = 76

4(10D + 7C = 130)

7(6D + 4C = 76)

40D + 28C = 520

42D + 28C = 532

40D - 42D = 520 - 532
=> -2D = -12
=> 2D = 12
=> D = 6

<u>Now, let's substitute the value of D into the first equation.</u>

10D + 7C = 130
=> 10(6) + 7C = 130
=> 60 + 7C = 130
=> 7C = 70
=> C = 10

Hence,<u> the cost of 1 dozen doughnut is $6 and the cost of a dozen croissant is $10.</u>

Hoped this helped.

$BrainiacUser1357$

4 0

3 years ago

Help me with this please

Xelga [282]

Alright, so for every addition or subtraction (without the whole thing being in parenthesis and multiplied by something) sign, there is 1 term to the right of it and 1 term to the left of it. However, we have to make sure not to overlap - for example, m is only 1 term - it can't be counted as 2 since it's to the right of a - and to the left of a +. Our terms are therefore 2m²n, 2mn², m, 3n, and 9

6 0

3 years ago

At costco 32 cans of coke cost a total of $8.96. what is the cost per can? let c represent the cost for one can of coke

victus00 [196]

Each can of coke costs .28 cents

5 0

3 years ago

Ac method for x^2+20x-8=0

yanalaym [24]

<h2>Explanation:</h2><h2></h2>

By using quadratic formula:

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$