1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
s344n2d4d5 [400]
4 years ago
12

I can’t figure this out no matter what I do it says it’s wrong

Mathematics
1 answer:
Oxana [17]4 years ago
6 0

Answer:

6.347 g Zinc to the nearest thousandth.

Step-by-step explanation:

Using the molar atomic mass of the elements:

65.38 g Zinc produces 65.38 + 2(16 + 1.008) = 99.396 g Zn(OH)2

So by proportion  amount of zinc required to produce 9,65 g Zn(OH)2

= (65.38/99.396) * 9.65 g Zinc

= 0.65777 * 9.65

= 6.347g Zinc.

You might be interested in
Write an inequality that represents the missing dimension x
forsale [732]

For this case we have that by definition, the area of a rectangle is given by:

A = a * b

Where:

a, b: They are the dimensions of the rectangle.

In the statement we are told that "The area is greater than 12 square inches", then:

A> 12

Also we have:

a = 2\\b = x

Substituting we have:

2x> 12

Dividing between 2 on both sides:

x> \frac {12} {2}\\x> 6

Finally we have:

x> 6

ANswer:

x> 6

3 0
3 years ago
What is the greatest common factor of 8x and 40?
satela [25.4K]
The GCF of 8x and 40 is 8.
3 0
3 years ago
Read 2 more answers
HALLP QUICKKKK
Rina8888 [55]
To solve this we are going to use the formula for speed: S= \frac{d}{t}
where
S is the speed
d is the distance 
t is the time 

Let S_{l} be the speed of the boat in the lake, S_{a} the speed of the boat in the river, t_{l} the time of the boat in the lake, and t_{a} the time of the boat in the river. 

We know for our problem that <span>the current of the river is 2 km/hour, so the speed of the boat in the river will be the speed of the boat in the lake minus 2km/hour:
</span>S_{a}=S_{l}-2
We also know that in the lake the boat<span> sailed for 1 hour longer than it sailed in the river, so:
</span>t_{l}=t_{a}+1
<span>
Now, we can set up our equations.
Speed of the boat traveling in the river:
</span>S_{a}= \frac{6}{t_{a} }
But we know that S_{a}=S_{l}-2, so:
S_{l}-2= \frac{6}{t_{a} } equation (1)

Speed of the boat traveling in the lake:
S_{l}= \frac{15}{t_{l} }
But we know that t_{l}=t_{a}+1, so:
S_{l}= \frac{15}{t_{a}+1} equation (2)

Solving for t_{a} in equation (1):
S_{l}-2= \frac{6}{t_{a} }
t_{a}= \frac{6}{S_{l}-2} equation (3)

Solving for t_{a} in equation (2):
S_{l}= \frac{15}{t_{a}+1}
t_{a}+1= \frac{15}{S_{l}}
t_{a}=\frac{15}{S_{l}}-1
t_{a}= \frac{15-S_{l}}{S_{l}} equation (4)

Replacing equation (4) in equation (3):
t_{a}= \frac{6}{S_{l}-2}
\frac{15-S_{l}}{S_{l}}=\frac{6}{S_{l}-2}

Solving for S_{l}:
\frac{15-S_{l}}{S_{l}}=\frac{6}{S_{l}-2}
(15-S_{l})(S_{l}-2)=6S_{l}
15S_{l}-30-S_{l}^2+2S_{l}=6S_{l}
S_{l}^2-11S_{l}+30=0
(S_{l}-6)(S_{l}-5)=0
S_{l}=6 or S_{l}=5

We can conclude that the speed of the boat traveling in the lake was either 6 km/hour or 5 km/hour.
3 0
4 years ago
Joseph is making kebabs. He wants each kebab to have 333 pieces of meat and 444 pieces of vegetables.
Paul [167]

Answer:

3 pieces of meat and 4 pieces of vegetables

Step-by-step explanation:

its basicly a ratio the meat is 1 lower than the vegetables.

4 0
4 years ago
Solve the following system of equations graphically y=2x-3 and y=x-1<br>​
Mila [183]

Answer:

Sooo... the

y-intercept =  -3

Slope = 2/1

Step-by-step explanation:

When you are going to find a point you are going to start at y = -3.Then from there you are going to go up two and right one until you have filled your graph

Hope this helps!

3 0
3 years ago
Other questions:
  • Given the ratio of 8 ounces to 1 cup, how many ounces are in 4 cups?
    5·2 answers
  • What is the missing length?
    12·1 answer
  • A savings account earns 5% simple interest per year. The principal is $1200. What is the balance after 4 years?
    5·2 answers
  • What fraction is equal to 0.25
    11·2 answers
  • You have a basket containing 10 apples. You have 10 friends, who each desire an apple. You give each of your friends, 1 apple.
    7·2 answers
  • What is the value of c in the equation below? 2 Superscript negative 4 Baseline times 2 squared = a Superscript b Baseline = c N
    5·2 answers
  • Need to know this ASAp
    10·2 answers
  • Surya cut a pumpkin into three pieces. He sold two pieces that weighed about 1/2 and 1/3 respectively of the total weight of the
    5·1 answer
  • Y^2-4xy-7y+28x please send the answer asap
    7·1 answer
  • Y = 4/5 + square root x + 0.2 - 5x
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!