3 years ago

What is the answer to 7/10+d=1/5

Mathematics

2 answers:

Rina8888 [55]3 years ago

8 0

positive 1/2 is the answer

Dafna11 [192]3 years ago

5 0

Answer:

d = -1/2

Step-by-step explanation:

I got a negative answer, I'm not sure if that's what you are looking for. But Hope this helps!

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Bonds are a(n) _______________ instrument.

stiks02 [169]

Answer:

indebtedness

Step-by-step explanation:

3 0

4 years ago

Working alone, Ryan can dig a 10 ft by 10 ft hole in 5 hours Castel can dig the same hole in 6 hours how long would it take them

Fed [463]

Answer:

The time taken by both boys to complete work = 2.73 hours

Step-by-step explanation:

Time taken by rayan to dig hole $T_{1}$ = 5 hours

Time taken by castel to dig hole $T_{2}$ = 6 hours

Now the time taken by both persons working together

$T = \frac{T_{1} T_{2} }{T_{1} + T_{2}}$

Put all the values in above formula we get

$T = \frac{ 30 }{6 + 5}$

$T = \frac{30}{11}$

T = 2.73 hours

Therefore the time taken by both boys to complete work = 2.73 hours

6 0

3 years ago

Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.

klasskru [66]

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

x^2+3x-70=0

(x-7)(x+10)=0

x-7=0

x+10=0

x=-10

AB=x+5

AB=12

AB=-5

BC=x-2

BC=5

BC=-12

Area of ABC = 30cm2

Perimeter of ABC = AB+BC+AC

8 0

3 years ago

It’s about solving systems of equations does anyone know the answer please

Rasek [7]

Answer:

Step-by-step explanation:

One Solution

6 0

3 years ago

F(x) = 3x^2-3x + 1 Find f (-2)

Oxana [17]

Answer:

Step-by-step explanation:

f(x) = 3x^2-3x + 1

Let x = -2

f(-2) = 3( -2)^2-3*-2 + 1

= 3 * 4+6+1

= 12 +6+1

= 19

8 0

4 years ago