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4 years ago

how to solve, A reservoir is 3 1/4 miles wide. Tony sails 4/5 the width of the reservoir. About how far did Tony sail?

1 answer:

6 0

Well, how much is 4/5 of 3 and 1/4? well, is just their product, thus, firstly, let's change the mixed fraction to "improper" and proceed,

$\bf \stackrel{mixed}{3\frac{1}{4}}\implies \cfrac{3\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{13}{4}}\\\\
-------------------------------\\\\
\cfrac{4}{5}\cdot \cfrac{13}{4}\implies \cfrac{13}{5}\implies 2\frac{3}{5}$

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9x + 1 = -26 what is the value of x

g100num [7]

X would be -3.
hops this helps mark me brainlist

5 0

3 years ago

Read 2 more answers

Use the Pythagorean theorem to find y.

PilotLPTM [1.2K]

Answer:

19.1

Step-by-step explanation:

13²+14²=365

√365≈ 19.1

8 0

3 years ago

What’s the x and y intercepts of this equation: -3x-7y=84

Arlecino [84]

Answer:

The X and Y intercepts to the equation -3x - 7y = 84 is

x-intercept (s): (−28,0)

y-intercept (s): (0,−12)

Step-by-step explanation:

To find the x-intercept(s), substitute in 0 for y and solve for x

−3x−7⋅0=84

Solve the equation.

x=−28

x-intercept(s) in point form.

x-intercept (s): (−28,0)

To find the y-intercept(s), substitute in 0 for x and solve for y .

−3⋅0−7y=84

Solve the equation.

y=−12

y-intercept(s) in point form.

y-intercept (s): (0,−12)

Hope this helps.

4 0

4 years ago

For how many three digit numbers (100 to 999) is the sum of the digits even? (For example, 343 has an even sum of digits: 3 + 4

n200080 [17]

Answer:

there are 425 numbers of three digits whose the sum of the digits is even.

Step-by-step explanation:

Option 1:

It is necessary to accomplish one of the next conditions:

(1) all of the digits are even.

(2) exactly 2 of the digits are odd

Then, for the first condition:

4x5x5 = 100 -> this is because the first digit can not be 0.

for the second condition:

(3C1)*5*5*5-1*5*5 =3*125-25=350

where 3C1 is a combination. The 3C1 determines which of the three digits is even, and it is necessary to subtract the numbers under 100 with the other 2 digits odd.

So, there are 450 numbers of three digits whose the sum of the digits is even.

Option 2:

there are 900 three digit number and 5*5*5 =125 has 3 odd numbers and 5*5*5+4*5*5+4*5*5=325 has 1 odd number, so there are 450 numbers of three digits whose the sum of the digitis is odd, so 900-450 whose the sum of the digits is even.

4 0

3 years ago

Evaluate the expression when a=7 and b=4<br><br> 36/b+a

Rus_ich [418]

36/7+4
36/11
36÷11=3.27272727.... Repeating

7 0

4 years ago